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Vornado Evap40 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds

4.2 4.2 out of 5 stars 4,476 ratings

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Purchase options and add-ons

Brand Vornado
Special Feature Manual
Color White
Filter Type Wick
Floor Area 1000 Square Feet
Capacity
4 Gallons
Runtime
24 hours
Material
Plastic, Metal
Power Source
Corded Electric

About this item

  • OPTIMUM PERFORMANCE — Deep-pitched blades pull large volumes of dry air through two humidifying filters, and then circulate the humidified air throughout the room using Vornado's signature Vortex Action, providing complete and uniform humidification in spaces up to 1, 000 sq. ft.
  • LARGE CAPACITY — The 4-gallon capacity provides up to 4-gallons of water output in 24 hours when operated continuously on high, allowing for long, uninterrupted operation and fewer refills.
  • SIMPLE CONTROLS — Control panel allows you to select your fan speed (low/750 RPM, medium/1150 RPM, or high/1600 RPM) and your desired humidity level using the humidistat dial.
  • LOW MAINTENANCE — Two spill-proof and leak-free removable tanks are simple to clean and easy to refill.
  • INTELLIGENT HUMIDIFICATION — Evap40 senses how much humidity and circulation is needed to maintain your ideal environment and makes adjustments automatically. Made in the USA of U.S. and imported parts.

Customer ratings by feature

Easy to assemble
4.6 4.6
Easy to use
4.4 4.4
Easy to clean
4.3 4.3
Noise level
4.0 4.0

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Vornado Evap40 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds
Vornado Evap40 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds
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Price-21% $119.00
List:$149.99
$99.99-7% $129.99
List:$139.99
$158.99-55% $49.99
List:$109.99
Delivery
Get it as soon as Sunday, Mar 31
Get it Mar 28 - Apr 2
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it Mar 28 - Apr 2
Customer Ratings
Easy to use
4.4
4.5
4.4
4.6
Easy to clean
4.3
4.3
4.4
4.8
Noise level
4.0
4.4
4.3
4.6
Sold By
Amazon.com
AIRCARE AUTHORIZED
Jack & Rose Shop
YougetTech US
Trendfort Depot
capacity
4 gallons
1 gallons
2 gallons
1.58 gallons
4 liters
floor area
1000 square feet
750 square feet
725 square feet
303 square feet
runtime
24 hours
16 hours
45 hours
24 hours
power source
Corded Electric
Corded Electric
ac
Corded Electric
ac
material
Plastic, Metal
Plastic
Plastic
Polypropylene
weight
9 pounds
4.5 pounds
9 pounds
5.5 pounds
6 pounds

From the brand


From the manufacturer

Evap40 Whole Room Evaporative Vortex Humidifier

Evap40 Whole Room Evaporative Vortex Humidifier

The Evap40 Whole Room Evaporative Vortex Humidifier creates a comfortable, perfectly humidified living space quickly and quietly. Vornado's deep pitch blades pull large volumes of harsh, dry air through two humidifying filters, and then, using Vornado's signature Vortex Action, circulates the humidified air throughout the room, providing complete and uniform humidification in spaces up to 1,000 sq. ft. The Evap40 delivers automatic humidity control with a built-in humidistat. An easy-to-use control panel allows you to choose your desired humidity level and fan speed (low, medium, or high). Its extra-large 4 gallon capacity provides up to a 4 gallon water output when operated continuously on high, allowing for long, uninterrupted operation and fewer refills.

Features

Evap40 Whole Room Evaporative Vortex Humidifier Lifestyle

Evap40 Whole Room Evaporative Vortex Humidifier Controls

Evap40 Whole Room Evaporative Vortex Humidifier Large Tank Capacity

Superior coverage.

Vornado's signature Vortex Action, circulates the humidified air throughout the room, providing complete and uniform humidification in spaces up to 1,000 sq. ft.

Control your comfort.

An easy-to-use control panel allows you to choose your desired humidity level and fan speed (low, medium, or high).

Large capacity means fewer refills.

The Evap40's extra-large 4 gallon capacity (from two 2-gallon water tanks) provides up to a 4 gallon water output when operated continuously on high, allowing for long, uninterrupted operation and fewer refills.

Features

Evap40 Whole Room Evaporative Vortex Humidifier Whole Room Humdification

Evap40 Whole Room Evaporative Vortex Humidifier Intelligent Humidification

Evap40 Whole Room Evaporative Vortex Humidifier Humidify The Room You're In

Humidify all the air in the room.

A Vornado humidifier uses special airflow called Vortex Action to quickly humidify all the air in the room. The air flows fast and gentle to create consistent, natural comfort.

Intelligently consistent comfort.

The Vornado senses how much humidity and circulation is needed to maintain your ideal environment and makes adjustments automatically.

Humidify the way nature intended.

Unlike a typical misting humidifier, evaporative humidification uses a wick to naturally humidify all the air in the room without making a wet mess on the surfaces around it. Although you can’t see it working, you can certainly feel the difference. And Vornado’s signature Vortex Action ensures complete and balanced humidification throughout the entire space — eliminating dry air and leaving only comfortable air behind so you can breathe easy all season long.

Easy to Clean

Evap40 Whole Room Evaporative Vortex Humidifier

Evap40 Whole Room Evaporative Vortex Humidifier

Evap40 Whole Room Evaporative Vortex Humidifier

Evap40 Whole Room Evaporative Vortex Humidifier

Customer Reviews
Humidification Method Evaporative
Coverage 1,000 sq. ft.
Capacity 4 Gallons
Output Per Day (High) 4 Gallons
Filters 2 Wick Filters
Fan Settings 3
Item Weight 9 lbs.
Item Dimensions 13.5"H x 19.5"W x 10.5"D
Power Cord 8 ft., 2-Pin Polarized
Volts / Hertz 120V / 60Hz

Product guides and documents

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here. [PDF ] Owner's Guide Manual [PDF ]

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Vornado

Vornado Evap40 4-Gallon Evaporative Humidifier with Adjustable Humidistat and 3 Speeds


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Product Description

Product Description

The Evap40 Whole Room Evaporative Vortex Humidifier creates a comfortable, perfectly humidified living space quickly and quietly. Vornado's deep pitch blades pull large volumes of harsh, dry air through two humidifying filters, and then, using Vornado's signature Vortex Action, circulates the humidified air throughout the room, providing complete and uniform humidification in spaces up to 1,000 sq. ft. The Evap40 delivers automatic humidity control with a built-in humidistat. An easy-to-use control panel allows you to choose your desired humidity level and fan speed (low, medium, or high). Its extra-large 4 gallon capacity provides up to a 4 gallon water output when operated continuously on high, allowing for long, uninterrupted operation and fewer refills. Backed by Vornado's 5 year limited warranty. Do not use gasoline, thinners, solvents or other chemicals for cleaning. Humidifier components are not dishwasher safe. Do not submerge humidifier tops in water. Power: 43 Watts.

From the Manufacturer

IMPORTANT INTERNATIONAL DISCLAIMER: This item is built to meet U.S. voltage requirements and may not function properly when used in conjunction with external devices that alter or convert voltage or frequency of electricity. Improper use or shipping the product outside the U.S. will void all warranties.

Customer reviews

4.2 out of 5 stars
4.2 out of 5
4,476 global ratings

Customers say

Customers like the performance, ease of use, and capacity of the humidifier. For example, they mention it works well, is efficient, and easy to clean. Some appreciate the capacity. That said, opinions are mixed on quality, noise, appearance, and water resistance.

AI-generated from the text of customer reviews

713 customers mention591 positive122 negative

Customers like the performance of the humidifier. They mention it's efficient, simple to use, and works well. They also say it'll work perfectly with environmental controller units and that the blue filters are better than the white filters. Customers also appreciate the three-speed option and the two-gallon containers.

"...can be cleaned this easily at this level of performance and at this price point...." Read more

"...A. Mist and ultrasonic units are generally cheaper to buy and operate, but are typically limited to small, enclosed rooms as they don’t generate or..." Read more

"...It is easy to operate and it works great. Holds lots of water so don't have to refill it everyday...." Read more

"...I like the simplicity of the design and it works well for the most part but sometimes it doesn't do what I expect and humidity gets too high or too..." Read more

375 customers mention281 positive94 negative

Customers like the filling of the humidifier. They mention that it's very easy to use and clean, and the cleaning seems fairly easy and straightforward. They also say that the tanks are easy to fill in a kitchen sink or bathtub, and that it is much easier using tap water than having to schlep gallons of distilled water. Customers also appreciate the large, transparent tanks with horizontal filling and handles that allow fewer refills.

"...They are much easier to clean, arguably better for your health (air quality) and in general more reliable because they are so uncomplicated -- a fan..." Read more

"...It’s the only humidifier that can be cleaned this easily at this level of performance and at this price point...." Read more

"...Large, transparent tanks with horizontal filling and handles allow fewer refills, easy monitoring of water levels, easy filling at the tap, and..." Read more

"...Cons: must run on high speed for good evaporative output, high speed is disturbingly loud, you'll need lots of filters unless you have pure water..." Read more

307 customers mention260 positive47 negative

Customers find the humidifier easy to use. They say it has a simple design and the instructions are well written. They appreciate the clean and convenient refill process. Customers also mention that the unit works well and is less troublesome than other hose-based humidifiers.

"...(air quality) and in general more reliable because they are so uncomplicated -- a fan, a reservoir, and one or more wicks...." Read more

"...It is easy to operate and it works great. Holds lots of water so don't have to refill it everyday...." Read more

"...It is a simple, genius design! SUPER easy to set up, to control the humidity using the humidistat knob & a hygrometer, to fill the tanks without..." Read more

"...All parts simply slip-fit together without use of any screws, pegs, nails or anything, and they stay together well...." Read more

198 customers mention163 positive35 negative

Customers like the capacity of the humidifier. They say it holds 4 gallons of water and is great for a large room. The two water jugs are quite large and hold more water than any other humidifier, making it simple to set up and fill.

"...It is easy to operate and it works great. Holds lots of water so don't have to refill it everyday...." Read more

"...I really like the design of the EVAP40. It has a large water capacity which is easy to refill. It's easy to take apart and clean...." Read more

"...Pros: it works, disassembles nicely for cleaning, comes with two huge holding tanks, has a stylish contemporary look...." Read more

"...I love the 4 gallon capacity so I won’t have to refill it so often.Overall, very happy with it and will update if needed." Read more

642 customers mention402 positive240 negative

Customers are mixed about the quality of the humidifier. Some mention that it has no issue keeping up the humidity for the whole house on low, the wick system allows for steady humidity without the "wet mist" other humidifiers create, and the humidity regulator is fantastic. However, others say that the Wicks are IMO are unnecessarily expensive, they were a pain to clean and never increased the humidity levels of their bedroom, and that the output on low fan is not super great.

"...arguably better for your health (air quality) and in general more reliable because they are so uncomplicated -- a fan, a reservoir, and one or..." Read more

"...raised the humidity in my bed room in no time and it is holding it steady with no problem...." Read more

"...First of all, the overnight output on low fan is not super great...." Read more

"...It seemed absolutely normal. No holes, no malformations, no sign of mistreatment. I refilled it and tried it on the opposite side of the unit...." Read more

506 customers mention327 positive179 negative

Customers are mixed about the noise of the humidifier. Some mention that it is very quiet on low speed, with a relatively quiet vertical vortex fan that generates ample moist air. They find the noise comforting and not too loud. However, others say that it makes gurgling sounds when more water is dispensed into the base and that the high speed is disturbingly loud.

"...On low speed it is very quiet. If you rinse the filters once a week in warm water, they will last longer...." Read more

"...It’s equipped with large dual wicks and a powerful, relatively quiet vertical vortex fan that generate ample moist air and circulation...." Read more

"...Second, it makes gurgling sounds when more water is dispensed into the base...." Read more

"...Noise wise the fan is very quiet on the low setting, and for a a couple rooms I can set it in a less noise sensitive area...." Read more

199 customers mention132 positive67 negative

Customers are mixed about the appearance of the humidifier. Some mention it's a marvel of simple design, with stylish contemporary look. However, others say that it'll probably last but the design isn't nearly as good, somewhat ugly, and poorly designed.

"...THE GOOD: The EVAP40 is thoughtfully designed and reasonably priced, and checks off the most important boxes...." Read more

"...I like the simplicity of the design and it works well for the most part but sometimes it doesn't do what I expect and humidity gets too high or too..." Read more

"...It seemed weird at first. The design seems counterintuitive and it took me a few tries to lob the water containers in properly...." Read more

"...for cleaning, comes with two huge holding tanks, has a stylish contemporary look...." Read more

166 customers mention74 positive92 negative

Customers are mixed about the water resistance of the humidifier. Some mention that they never spilled, the containers come off to fill, and there is typically no spillage with refilling. However, others say that it doesn't humidify well, the tank will never fully dry on its own, and the filters tend to not absorb the water. They also say that the filters will dry out and need to be rotated.

"...(it's easy to slosh water out and the plastic appears to be on the thin side)..." Read more

"...They never spilled." Read more

"...tray until the tray fills and then it keeps flushing, forcing water over the top edges of the open holding tray, creating an absolute disaster of a..." Read more

"...a relative humidity level between 40% and 50% is not too dry and not too wet...." Read more

Detailed review on the Vornado Evap40 Humidifier.  I like it a LOT!
5 Stars
Detailed review on the Vornado Evap40 Humidifier. I like it a LOT!
This is by far the longest, most detailed review that I have ever written for a product. But, I would like people to know what to expect from this unit, and to learn a bit about humidity and what affects it. So, here we go. OK, I've read at least 100 reviews of different humidifiers on Amazon and other sites before I settled on buying this unit. And, I'm glad -- and sad -- that I did. MOST negative reviews come from people whose expectations can not be met by any humidifier currently on the market. There are undoubtedly bad humidifiers out there, but this is not one of them. Also, some people buy a product with unrealistic expectations as to what that product will actually do, or what care it will require. This is unfair to the product, although the makers do put out some fantastic claims without giving us all the background necessary to understand the claims. So, what are some of the unrealistic expectations I see people complain about? I'll address a few here and give my view of them. (1)The humidifier should make absolutely no noise whatsoever. Really? If the unit operates on electricity with some part that moves, you WILL get some noise - period. How much is dependent on how fast those parts move and/or the type of movement. In the case of this humidifier, it has 3 fan speeds, and off. On the lowest fan setting, placed on a carpeted floor 5 feet from our bed, you can not hear the fan on low. On medium speed (which is where we keep it to sleep), you can hear it a little when you are awake, but it does not keep us from getting to sleep or staying asleep. On high speed, where it will humidify a room the fastest, you can definitely hear it, and we can not sleep with it at this speed. On the lowest speed it will not raise the humidity very much. We use high speed only in the daytime to humidify the air and objects in the room as much as possible. In addition to the fan, you will have the occasional gurgle of water from one of the plastic jugs as it refills the reservoir as water in the reservoir gets evaporated away. Want to know what that sounds like before you buy? Fill a gallon plastic milk jug with water, then pour it out faster than air will enter the jug opening. You will hear and see the water glug and gurgle as the air enters behind the water that empties. Our unit does not "glug", it "gurgles" (a softer sound for only 3 or 4 seconds). If this wakes you from a sleep, then you a VERY light sleeper, you have the unit on a sound resonating object (like a hard nightstand or wooden floor), or it it simply too close to your bed and at too high a height. Try placing it on the floor on a carpeted surface away from your bed. You'll be amazed at what a difference in noise level this makes. 2) The unit should require absolutely no maintenance. REALLY people, do you ever buy anything that requires no maintenance? Do you run your car without doing maintenance on it? What you WILL have to do to keep this humidifier operating in tip-top shape are the following: (A) Refill one or both of the plastic jugs that supply water to the unit as they get used up (evaporated). The jugs have a handle on one side, and are flat on the other side. I lay mine down in a laundry sink, aim the spout over the opening, and then fill it. It takes exactly 1 minute and 15 seconds for me to fill one of the 2 gallon jugs in this fashion (once it is positioned in the sink). 2 gallons is a lot of water, and it weighs16.72 pounds. So count on having to carry that much weight with the handle provided on the jug if you fill it all the way. Can't carry that much weight? Don't fill it all the way! I bought a bottle of the BestAir Humidifier Bacteriostatic additive to put in the water. I don't know if it works or not, as I have always used it, and have no problems with algae so far. I gave up measuring capfulls of the product, and just guess at the amount as it can't be rocket science. It does NOT prevent my water softener softened water from building up as a deposit on the filter (see B below). The jugs tip into place extremely easily whether the top is on the unit or off the unit. They never spill for me. Do NOT try to tip them slowly -- just set them against the unit at the bottom, and tip them quickly upward into place. Nothing to it. You can remove them one at a time, with the top on the unit, even if the other jug still has water in it. This is a nice feature, as you can simply refill the unit one jug at a time. You can even remove a jug that still has some water in it without any of it spilling out. (YES, for "safety", I keep an aluminum baster/roaster under the unit in case any water were to spill out, but to date none ever has.) B) The filters (they are really wicks) will develop a crusty edge at the top on the outside portion after running a few days. In my case, this is due to my water softener water that I use. I never tried store bought water as my water works just fine in the unit. Whatever water you use, if it has ANY impurities in it, regardless if you can see the impurities or not, then you WILL get a residue on the wicks as the water evaporates. Where else would these impurities go? A pan of water on the stove that is evaporated will also leave behind the same impurities! To ameliorate this issue, I simply turn the wicks upside down and over every other time I fill the jugs! That is, if the yellow/tan buildup is on the top edge outside, rotate the wick until that edge is on the bottom to the inside of the unit. It will re-soften and disappear (only to reappear on the top edge outside later). Then, once a week, or whenever I feel like it, I take these wicks out, take them to my laundry sink, lay them flat on the bottom, fill the sink until the water is about 1" over the top of the wicks, then add a cup of white vinegar. Let the wicks soak in this for about an hour, rinse them in clean water, stand them against inside of the sink on edge to drain and then reinstall them in the humidifier. Voila, the vinegar dissolves the salts that have accumulated, and rinsing them flushes them away. At the same time, I empty out the reservoir of the unit and flush it well with clean water. It is like starting over again. This process takes maybe 15 minutes of time to do once a week or so. BE CAREFUL WITH THE WICKS, as they are easily destroyed. Handle them gently, NEVER try to wring them out or press dry, just stand them on edge against the empty sink when you are done for about 20 minutes, and they will drain on their own. I did buy a second (spare) set, but after 3 weeks, I have not even taken them out of the package. I see no reason why the wicks won't last at least 2 months with proper care -- maybe even a full winter season. C) Other maintenance? I don't know of any, but then I haven't had my unit except for 3 weeks. An old adage my father taught me: It is far easier to spend a little time keeping something clean and operating well than to have to repair it due to neglect. It is true.So, how well does it work, and what is my environment like? First, I live in a 2 story house, with a bedroom and large living room that have very high cathedral ceilings. My bedrooms are all carpeted, and most of the main house (foyer, dining room, dinette, kitchen and laundry room) are tiled. I bought the humidifier to raise the humidity in our master bedroom at night to alieve mild symptoms of difficulty breathing, and getting some blood in our noses at night. It WORKS for doing this. Based on the hygrometer readings, the unit keeps our bedroom (15' x 20') and attached master bath and master closet a full 8% relative humidity higher than in the rest of the house. This despite the fact that we have central heating with LP gas that disperses the air from the bedroom into other parts of the house when it runs (even with the door to the bedroom closed). Hence, some of the additional humidity gets distributed to the rest of the house through the heating system. Note, if you turn your heat down at night (we turn ours down 10 degrees at night), then the bedroom with the door closed will be sealed off from the rest of the house and humidify more quickly until the temp drops the full 10 degrees and the heating system kicks back in. This 10 degree drop also helps increase the relative humidity level at night because cooler air holds less real moisture than warmer air; hence, with the same amount of water in the air, the relative humidity goes up until that water vapor gets absorbed by other things. Note that I just mentioned that water vapor gets absorbed by things. Those things include anything that is soft, including carpeting, bedding, blankets, pillows, wood (Yes, wood does absorb moisture), drywall, etc.. My point is that when you start up any humidifier, all of the objects in the space are very close to the same relative humidity as the air in the room. As you try to increase the relative humidity in the room, the "soft" objects will absorb this same moisture. So, you are humidifying NOT ONLY THE AIR, but all soft objects in that room. That takes a LOT of water to move the relative humidity a little bit! So, do NOT expect ANY humidifier to instantly raise your humidity level any appreciable amount quickly. It will rise slowly, but should rise consistently unless you have a lot of air leaks in your home. In my case, my unit with outside air at about 32 degrees and inside air kept at 60 at night, 70 in the daytime keeps my bedroom at a full 8% relative humidity increase over the rest of the house (53% in the bedroom versus 45% in the rest of the house). That's pretty damn good in my view, and helps us tremendously in sleeping. It also helps any valuable furniture you might have in that room. About the built-in humidistat in this unit. It does work, but as has already been pointed out, there are no settings etched or printed into the dial. If you turn the dial all the way up, the unit will run constantly without ever shutting off. This is for all intents and purposes an "infinite" (100%) setting. After humidifying your room for about a week, try turning down the dial slowly with the unit running. It will likely turn off at some point. Whatever your relative humidity level is in the room, this is the point on the dial where this humidity level will be maintained. If you have a separate hygrometer to read your relative humidity level (I bought the ThermoPro TP50 unit which works very well), then you could mark the dial on your Vornado humidifier with this number to get some relative point of reference for the future, but don't count on that setting continuing to be accurate. Want more info? Check out the photos that will show you that this is a SIMPLE machine with only 6 parts: A top half that contains the fan and all the controls, a bottom half which is nothing but a molded plastic tray that acts as a reservoir to hold the water, 2 wicks that rest against the outside slated portions of the bottom with one edge sitting in the water, and 2 plastic 2-gallon jugs that provide the water to be evaporated. All parts simply slip-fit together without use of any screws, pegs, nails or anything, and they stay together well. Very easy to lift each part away. NOTE: When this unit has water in it, do NOT attempt to pick it up and move it, as it can and will fall apart since all parts simply slip-fit together, and the water is HEAVY. The top can be lifted off without unplugging or turning off the fan, and set aside, as it is self-contained. This reveals the 2 water jugs on either end, and the 2 wicks in the center. Easy as pie! In the photos you will see the hardened residue that I get on the wicks after 4 gallons of water have been evaporated. I have already turned one of the wicks over and around and put it back in one of the photos, which is why it shows on the inside bottom, rather than the outside top where it actually accumulates from the drying action of the unit. How fast does it evaporate water for me? Remember, I'm starting at about 45% relative humidity (not too bad), so the water does not evaporate that fast at this high a humidity level. The unit on medium will evaporate about 2 gallons of water a day into my bedroom raising that humidity level to 53%. If I kept my temperature higher, and/or my air was drier to start with, then the unit will evaporate water into the air at a faster rate. Remember, it is RELATIVE humidity, not absolute moisture in the air that you are measuring. Good luck with your unit, and sleep/live well!
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Top reviews from the United States

Reviewed in the United States on February 16, 2024
Reviewed in the United States on October 9, 2022
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5.0 out of 5 stars Fantastic humidifier, easy to clean and maintain!
Reviewed in the United States on October 9, 2022
So far I’m in love with this humidifier. I have a large output cool mist humidifier for my living room, so this one is bought specifically for my large bedroom. These are things that are not great for me, and could be a dealbreaker for some. First of all, the overnight output on low fan is not super great. It’s not bad, it kept me comfortable throughout the night, no stuffy nose due to dryness, so not really a problem for me. It’ll put out more moisture on high or medium fan speed but it’ll be noisy. Second, it makes gurgling sounds when more water is dispensed into the base. This is not a very tiny sound, especially in the middle of a quiet night. It’ll work if most sounds doesn’t bother you at night but you’ll hate it if you’re a light sleeper. I’m a light sleeper, that’s why I noticed and woke up every time it makes that sound, about 4 throughout the night. However it doesn’t bother me much because since I’m a light sleeper, my dog wakes me up in the middle of the night all the time, everyone of her tiny move wakes me up so no big deal, I don’t get grumpy and I fall right back to sleep. Choose carefully according to your sleep patterns.
Now on the good side of things. This humidifier by nature incorporates vornado’s air circulator fan, which I actually use with my other cool mist humidifiers. With this humidifier, I only turn on one unit instead of two. It can be set on the floor, unlike my other humidifiers that need a raised flat surface. Lastly, this humidifier is just so easy to disassemble and clean, no tight and small hard to reach areas, and that’s the most important thing for me when it comes to humidifier.
Coming from a long time cool mist humidifier user, I’m extremely careful when it comes to cleaning my humidifier. I don’t ever want to see any pink or black, mold or algae in my humidifier. Here’s how I maintain and clean it.
I set it up as instructed, plus adding bacteriostat into the water tanks. I pull out the water tanks after each night of use, set them aside, keep the left over water in it if there’s still a lot. Then I remove the top fan part, which is very easy, took the base to my bathroom, dump the left over water in the base, also very easy. I keep everything open and separated, let the base and wicks air dry during day time. At night before bed, I rinse the wicks, put everything back and turn it on again. Took 3 minutes of my time to do all that in the morning and another 3 minutes at night before bed. Every week I clean the water tanks and the base according to the cleaning instructions. You might need to clean them more frequently if you don’t want to use the bacteriostat water additives. I also clean the wicks using white vinegar solution weekly and change them out every month.
Yes it’s a lot of work, but the truth is keeping and maintaining a humidifier is a lot of work. Get the cool mist ones if you don’t want to spend more money on the wicks but be prepared to clean it even more.
Once again I love this humidifier, highly recommend it. It’s the only humidifier that can be cleaned this easily at this level of performance and at this price point. Also, I’m not sure why so many reviewers say that the water spills every time removing the tanks. I suggest watching some YouTube reviews to learn how to properly remove the water tanks. They never spilled.
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Reviewed in the United States on March 8, 2022
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4.0 out of 5 stars Performance 5 Stars, Maintenance 3 Stars
Reviewed in the United States on March 8, 2022
For us, and likely most others, a relative humidity level between 40% and 50% is not too dry and not too wet. We’ve used various humidifier types, brands, and sizes and few deliver on performance claims. Many rely instead on various “bells and whistles” and gimmicks to sell their under-performing products. A solid performer generates both sufficient moistened air and circulation to raise and maintain optimal humidity for the square footage (ft2) claimed, particularly when outside temps plummet and so does indoor humidity. For rooms/areas up to 1000 ft2, it’s hard to find one that lives up to its performance claims better than the EVAP40, especially at this price point, which is 1/3 the cost of some under-performing competitors.

THE GOOD: The EVAP40 is thoughtfully designed and reasonably priced, and checks off the most important boxes. It’s equipped with large dual wicks and a powerful, relatively quiet vertical vortex fan that generate ample moist air and circulation. Large, transparent tanks with horizontal filling and handles allow fewer refills, easy monitoring of water levels, easy filling at the tap, and easier transport. The wicks (sometimes called “filters”), by capturing the bulk of hard water minerals, avoids the fine chalky “white dust” phenomenon of other types, while also reducing the frequency and difficulty of cleaning the unit’s interior.

THE BAD: Like many printers, air purifiers, etc. that appear to be a good deal, they can be costly to maintain with over-priced, limited-life consumables. You may even regret purchasing the product, but likely not until you use up the consumables that came with it which, perhaps by design, seem to last just beyond the unit’s return window. The EVAP40 folks seem to have taken this process to the next level:

1) The simple, paper-based wicks are overpriced at around $12 or more plus tax for a set of 2, and for us last about 3 weeks during the coldest part of IL winters. Mineral scale gradually builds up on the wicks, reducing both wick absorption and airflow through them. Your results may vary based on how you use it and how hard your water is (ours is very hard at 250 ppm TDS).

2) Although the unit comes with 1½" wicks, the AMZ product page (for the EVAP40 sold by the company) lists the thinner 1" MD1-0034 as replacements—not the 1½" MD1-0002 wicks also sold by the company. Thinner wicks have less surface area, so mineral saturation (scaling) occurs faster, requiring more frequent replacement. You may assume the thinner wicks cost less, but they sell for about the same price as the MD1-0002. Despite AMZ reviewers’ questions and complaints over time, the company remains curiously silent on this topic. And strangely, "comparable” wick refills sold by other sellers are also the thin variety and no bargain. (Note: AMZ recently took notice and established a separate product page for the EVAP40 they sell directly along with a refill of the appropriate MD1-0002 wicks. Just type EVAP40 in the AMZ search window, and you will find it. )

3) As other reviewers indicate, we also found the 1½" wicks that came with the unit lasted longer than the replacement wicks, inc. the 1½" MD1-0002 we use. No company comment on this issue either.

TIPS (for Operating Wick Evaporative Units):

1) Type of Water Used: Wicks can last longer if tap water is not very “hard,” or the water is distilled or demineralized (e.g., by reverse osmosis (RO)). But unless you have a RO system at home, the cost and trouble of store-bought jugs exceed the benefit of extended wick life. Our EVAP40 can go through 4 gal/24 Hrs. For water “softened” by ion exchange (replacing hard minerals with salt), salt also does not evaporate and will saturate wicks, reducing performance. Also, magnetic "salt-free" water conditioners do not prevent mineral scale on wicks (or within other types of humidifiers, or coffee makers, showers, etc.). We were duped a few years back into buying one of these systems, and their scientific-sounding marketing is simply gobbledygook.

2) Cleaning Wicks: We found soaking used wicks for a few hours in a vinegar/water solution (1 cup/1 gal), then wringing out, rinsing, and wringing again can extend their life a couple weeks or so. A 2nd cleaning is iffy because the wick material is fragile and deteriorates.

3) Troubleshooting: If you feel the unit is not, or is no longer performing effectively: A. Check the wicks. Mineral scaling begins on day one, gradually reducing performance. B. Crank up the unit’s humidistat and/or fan speed. C. Ensure the unit is relatively level to ensure tanks gravity-feed the bottom tray properly. D. Fully wet (or, “prime”) wicks before use, whether new or cleaned. E. Keep doors in the room closed as much as possible. F. Try relocating the unit. G. Cut your losses and replace the unit with one that better generates and circulates humidified air. H. Move to the Gulf coast.

TIPS (Before Purchasing any Humidifier):

1) Major Types/Designs include Mist (warm or cool), Ultrasonic, and Evaporative (wicks or impellers). They all come with their own pros and cons, with some of the most important outlined below.
A. Mist and ultrasonic units are generally cheaper to buy and operate, but are typically limited to small, enclosed rooms as they don’t generate or circulate moistened air that well. Some don’t vaporize well, with much of the moisture falling to the surrounding floor instead of mixing with the air. If using hard water, these units can quickly cover everything nearby with a fine, chalky white dust. In our experience, products added to the water claiming to eliminate this problem do not work. These humidifiers also require more frequent internal cleaning and are more difficult to clean than evaporative wick units.
B. With no wicks to replace or clean, evaporative units with Rotating Impellers can look appealing. A German brand we purchased also claimed to clean the air (“air washing”). But despite costing roughly 3 times more than our wick unit, it was less efficient at both producing and circulating humidified air. It was also more difficult to monitor the water level, refill and clean, it's noisier, and requires a specific additive (presently a whopping $13 per 8.5 oz bottle). And for “air washing” claims, Consumer Reports found “Both models we tested proved no better at removing dust and smoke than no air purifier at all.” Though the company quickly moved on from these models, the “air washing” process (and claims) have not changed for their newer models. Most any humidifier will trap some air particles as it pulls or pushes air through the unit—just not enough to make any significant difference.
C. Be wary of portable/console evaporative units advertised as “Whole House” humidifiers, even if the claimed ft2 meets or exceeds that of your entire home. Unless it’s for an RV, one of those “tiny homes,” or your floor plan resembles a jail cell—even the largest models cannot possibly circulate sufficient humidified air throughout traditional multi-room homes or apartments. Legitimate whole house humidifiers connect directly to the home’s HVAC and water system, and typically require more expertise to install than the average DIY. And of course, they are very costly.

2) Consider Additional Costs that can include consumables (wicks, water additives), electricity, water, and vinegar. Also, for effective/efficient operation—one or more humidity meters (hygrometers) to monitor humidity where you spend most of your time (e.g., couch, recliner, desk, table, bed, etc.). Use the readings to make adjustments to maintain desired levels. (You can buy 2-3 good hygrometers on AMZ for less than $25 total). You may also want a tray (e.g., boot/shoe or food tray) to place under the unit to catch potential spills and leaks. Depending on unit design, you may also need a separate container to haul water, and perhaps a funnel as well.

3) Be aware of unnecessary Add-Ons (bells and whistles) that increase unit cost and provide questionable benefit. One of the biggest add-on/gimmick is a digital hygrometer (humidity meter) on the unit itself, which (if accurate) indicates the relative humidity at the unit, but not other locations in the room, where levels may actually be 20-30% lower even in a smallish room. It's really just a fancy humidistat that controls the fan, vs. a dial that costs less and does the same thing. Example: If the onboard hygrometer is set at 50%, it doesn't represent the humidity level where you spend most of your time, unless you use the humidifier as a footrest, or the area is the size of a doghouse. Whether your unit comes with a digital or dial humidistat, you will still have to readjust it as natural humidity conditions in the room change. We find it easier to just set the humidistat on its highest level, and adjust the fan speed (low, med, hi, or off) as necessary, which isn't often.

4) Consider Ongoing Maintenance, e.g., monitoring humidity levels, readjusting humidistat and fan settings, checking water levels, refilling one or more times/day, adding water treatment, replacing/cleaning wicks (if equipped), and cleaning the unit’s interior.

5) When determining a Right Size Unit based on your area’s square footage (L x W = ft2) you should include any adjoining, openly-connected areas, e.g., kitchen, dining, hallway, etc. As a rule of thumb, consider units that claim 50% more ft2 than your room or combined area, and for raised ceilings consider going higher. We found claims are often unreliable, likely to one-up the competition and/or because they are based on optimum, controlled conditions unlikely to resemble your situation. If you live in an area where outside temps often fall below freezing, you will need a unit that can consistently raise and maintain humidity levels 20-30% or more. This level of performance may not be reflected in product claims.

6) When turning on a humidifier in a room/area with very dry air, it can take up to 24 hours before you see a notable rise in humidity throughout the area. Everything in it is as dry as the air including curtains, flooring, furniture, etc., and they will absorb moisture from the air until the room and everything in it reaches equilibrium.

The bottom line is, for our needs and knowing what we know now, we would still purchase the EVAP40, until a better option comes available. Right now we don't know of any.
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Reviewed in the United States on March 9, 2024
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Renovationman26
5.0 out of 5 stars A good compromise
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5.0 out of 5 stars A good compromise
Reviewed in Canada on February 24, 2023
A few reviewers much wiser than I have pointed out there is no such thing as a perfect machine for what you think you want and what price you’re prepared to pay. After hours of research on evaporative humidifiers, this Vornado Model EVAP40 seems a good compromise – for me.

I was looking to replace my mist-type humidifier as the fine white powder it deposited was clogging up my air purifier filters in grand style. My asthma wasn’t benefitting either and I thought it was better I didn’t breathe that stuff in.

As a Canadian senior living in a southern Ontario, Canada, senior’s residence my quarters are small with an en-suite bathroom, and I have to cope with outside winter temperatures varying from -16 degrees Celsius (3.2 F) to weeks of -6 degrees Celsius (21.2F) with an outside humidity varying from 34 to 80%.

All this plays merry hell in trying to match the desired indoor temperature and humidity. My old-fashioned barometer was always a bit vague with humidity settings at normal, high, and low, so I bought a ThemoPro TP49-B Mini Hygrometer Thermometer and began an interesting battle of wits to seek the holy grail (for me) of the daytime temperature at 22-23 degrees Celsius (71.6 – 73.4F) and a humidity level of 44-50%.

I suppose there is a machine somewhere at NASA budget costs that takes the outside temperature and humidity and juggles some sort of average for your hard-working humidifier to sort out.

My good compromise Vornado Model EVAP40 does its best with a little manual help from me.

Noise: On low, it’s virtually soundless. On high it might be irritating at night, but you never need it on full at night anyway. The occasional burb and gurgle as the tanks feed the reservoir is a gentle reminder that my machine is quietly going about its business.

Filling: Two brilliantly designed tanks have conveniently wide spouts for easy filling. I have no individual kitchen so I have to refill at the bathtub. I found it difficult to see where the fill line was so I drew a line around with a black felt pen. Problem solved. There is little danger of spillage as you simply plop the tanks in place as shown in the excellent manual. I keep my machine sitting on a deep-rimmed boot tray I bought from Amazon.

Design: I found the knobs very stiff and on the front of the machine which is hard for a senior to see, as we don’t bend down very easily. I had to photograph the front panel with my iPhone so I could stand up to enlarge it to see what was what. Again, this a compromise I could accept.

Review: A good compromise and I highly recommend this. I haven’t used it long enough to replace the filters but I assume I will need two sets for the winter season. I turn them upside down occasionally and installation is easy.
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Chris P.
1.0 out of 5 stars I can't get over how bad this is.
Reviewed in Canada on October 9, 2020
30 people found this helpful
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