Vornado – Evap40: Humidifier Review

Unlike other humidifiers like the ultrasonic ones, evaporative humidifiers consist of basic parts such as a wick, a fan, and a reservoir. The presence of a fan makes them much more efficient in humidifying large areas than their ultrasonic counterparts.

Vornado Evap40 4-Gallon Evaporative Humidifier is a small-space serving humidifier that uses Vortex type of airflow to ensure the air being emitted contains high-quality mist that circulates evenly throughout the house.

We try to look at what makes this humidifier set itself apart from its competition.

Description of the Evap40 by Vornado

Vornado Evap40 4-Gallon Evaporative Humidifier consists of a large 4-gallon tank that is able to provide a 24-hour uninterrupted operation without needing to refill the tank. It is also relatively easy to maintain especially if you don’t have to replace the filter so often which drives the operation cost further down.

If you live in an area where distilled water is unavailable, this humidifier is the ideal choice since it can use even tap water and it will still work the same. This is because it has a built-in replaceable filter that ensures the mist emitted is mineral-free. Tap water is usually hard hence it contains mineral deposits which may settle on furniture as white dust.

Though it may not be noticeable right away, white dust discolors your furniture and walls from their original colors with time as the minerals slowly interact with the surfaces. The harder the water the more frequent the filter will need to be replaced because with hard water, filters tend to discolor and accumulate mineral deposits more quickly which makes them ineffective.

This humidifier is fairly quiet, especially on low setting making it suitable for use in study, office, and bedrooms. You can therefore be assured a quiet night where you can sleep comfortably without hearing the annoying fan-motor vibrations common with most humidifiers with fans.

It also has 3 fan-speed settings that allow you to take control of the rate of humidification you want. The high-speed setting is the quickest since it rotates fan-blades faster thus drawing more dry air into the humidification.

Though this works faster, it creates more noise and thus cannot be used at night especially if you are a quiet sleeper. The low-speed setting is best suited for use in the night as it does not produce to much noise. It almost inaudible while operating.

Adjacent to the fan-speed control is a knob for setting the level of humidity you want in the house. The humidifier will continue to run as long as this level is not reached. It must be said though that the humidity setting cannot be used as an accurate humidistat since it doesn’t show how much humidity has been achieved at a particular time. However, the humidifier will run until the set level has been attained, whereby it will then shut down.

The water tanks are very easy to fill as they have large openings and have a flat base thus can be filled in a sink by laying them flat. Having large openings means cleaning is effortless and fast. You can wash with some bleach and vinegar solution every two weeks to make sure the appliance is always clean and fresh and also free from molds and bacteria buildups.

Vornado Evap40 4-Gallon Evaporative Humidifier can be a bit heavy especially when having water in the tanks, so it’s advisable to ask for some help when moving or lifting it to avoid toppling it which could damage the device. Alternatively, you can wait for it to empty itself completely as it is about 9 pounds(4kg) which is much easier to lift and move around.

One must also be very careful especially if you are purchasing the item outside the U.S as the warranty does not cover items shipped outside. This is because this humidifier is made to only meet U.S voltage requirements thereby exposing it to different voltage or frequency may damage its components or it may not be able to function properly.

Technical Specs

Type of HumidificationCool Mist Evaporative
Type of MistCool
Room Coverage1000 sq.ft
Tank Capacity4 gallons
Humidification PerformanceUp to 4 gallons per 24hrs
Water Low IndicatorNo
Automatic Shut-OffYes
Maintenance Reminders-
Display Dimmer-
Power Supply120V, 750W
Weight9 Lbs
Dimensions13.5 H x 19.5 W x 10.5 D inches
Accessories Included-
Price (in USD)116.94


  • It is quiet enough to be placed in the bedroom, study room or kids room.
  • It is easy to control and use.


  • A bit pricey as compared to other humidifiers that provide the same features.
  • Very large and heavy when the tanks are full.

Users' feedback

Users quotes on Amazon.comDefinitely quiet on low, fairly quiet on medium. Works absolutely fantastic in my downstairs. I have an open Floorplan 1100sq ft area that is very effectively covered by this humidifier. My only complaint is that filling can be a bit tricky if you're not doing it in a sink. It tends to splash around because the mouth is a bit narrow. This would not stop me from buying another one. Overall I'm very happy with it, just wish it came in black."

Users quotes on Amazon.comWe have an old one of these that we continue to use every winter. When it came time to add one to a child's room, we had no question about ordering this product again. It makes some noise as all fans do and sometimes there is a gurgling sound of the water moving into the tray. After the first night or two, we no longer notice it and by the end of the season, it sounds too quiet without it running. We breathe easier and our noses are less dry and stuffy, so no more headaches every morning. We like the larger size because how much moisture your room needs depends on too many variables, not just size of the room, so we went with one that definitely makes it through the night (usually several nights in a row) before needing refilling."

Conclusion: Evap40 by Vornado

Vornado Evap40 4-Gallon Evaporative Humidifier is the perfect humidifier for providing a comfortable, fresh air in medium rooms.

If you are tired of having to refill your humidifier every now and then, this is the one you should be looking for. It is easy to fill, has a long-lasting filter and the tanks are spill proof.

We would highly recommend this appliance especially if you are living in the United States and have a medium space. It is also backed by a 5-year warranty so you are covered support in case of malfunction or advice.

Our rating:


| Vornado - Evap40
| Rating :