Air-O-Swiss 2055A Air Washer and Humidifier

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Air-O-Swiss 2055A
Item#: AO0020
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Air-O-Swiss 2055A Air Washer & Humidifier

Sharing features from both the 2055 and 2055D, the Air-O-Swiss 2055A Air Washer & Humidifier is a simple, yet effective way to put needed moisture back into your indoor air while removing particulate and dust that can negatively effect indoor air quality. Air washers feature a slightly different humidifying technology that uses a series of discs and evaporation to restore moisture without any need for a demineralization cartridge. With low power consumption and extremely quiet operation, the AOS 2055A is one of the most unobtrusive and low maintenance ways to improve indoor comfort throughout the year.

With the Air-O-Swiss Air Washer and Humidifier, you'll never have to worry about changing filters because there are no filters to change! As the disc rotates through the water, water bathes each disc. Impurities and particles in the air, like pollen, dust and other common particle allergens attach to the discs as air circulates in from the sides of the unit. A pre-ionizer gives each particle a very small charge causing them to attract and for larger particles that adhere to discs. As the water evaporates and is dispersed throughout the room, the particles remain, and because the basic principle of evaporation is what drives this unit, there is little to no chance that minerals are released in the air. This also means there are no demineralization cartridges to replace, so you are free to use any type of water you have available. When dirty, simply remove and wash the discs (dishwasher safe), wipe out the tank, and your AirOSwiss Air Washer is ready to go!

AirOSwiss 2055A Airwasher & Humidifier Video

Air-O-Swiss 2055 A Humidifier Specifications

  • Main Voltage 120 V / 60 Hz
  • Power Consumption: 20 W
  • Weight: 13 lbs.
  • Size Dimensions: 14.2" x 14.2" x 14.2"
  • Length of Cable: 79"
  • Maximum Coverage: 600 sq. ft.
  • Maximum Humidity Output: 3 gallons a day
  • Tank Capacity: 1.85 Gal. (7 L)
  • No chemical additives required.

Air-O-Swiss 2055A Humidifier Product Features

  • Removes particles from the air while it humidifies
  • Auto shutoff when tank is empty
  • Fragrance container with Key Function to open the disc pack
  • Hydro Cell adsorbs impurities and helps keep the humidifier clean
  • No replacement filters or evaporator mats required
  • Transparent and removable water tank
  • Easy to clean, dishwasher safe discs and operate
  • Quality components to ensure lasting use
  • Quiet operation
  • Extremely energy efficient, uses about as much power as a CF light bulb
  • Ten year warranty

Product Reviews & Questions

Write A Review | Read all 5 reviews.
  Air-O-Swiss 2055A
Reviewed by:  from Asotin, WA

This is our second Air-O-Swiss. The first one ran continuously for 10 years before the motor gave out. We use it in the bedroom. It goes through 5 gallons of water a day which is much more than pad-type evaporative humidifiers. Never a problem with mold growing on the pads since there are no pads. It also pulls a lot of stuff out of the air. It seems expensive and honestly is! but worth it in the long run.
  too early to tell
Reviewed by: adeline from canada

i received this item two days ago and have not had a chance to use it
  Excellent product
Reviewed by: Lisa  from Gulfport, Ms.

My ENT Doctor recommended that I purchase a humidifier for my sinus problems. The Air-O-Swiss Air Washer and Humidifier allowed me to sleep through the night and wake up without feeling congested. It is very quiet and little to no maintenance is required. I highly recommend this product.

Customer Q & A

Q1: the 2055a states that there are little to no minerals released to the air. will this eliminate the white dust i get from my past humidifers ultrasonic type

A: It should, yes. The ultrasonic humidifiers sometimes put a white dust into the air when there is no demineralization cartridge to remove mineral content from tap water. The solution to this is replacing or using a cartridge or using distilled water. With the AOS 2055, moisture is put back into the air by evaporation. So there is no diaphragm that is aerosolizing water into mist. Any mineral content in the water will collect in the base of the unit and on the plates. This can be wiped out once dry or removed with a bought or homemade descaling solution.

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Air-O-Swiss 2055 Air Washer Reviews
Air-O-Swiss 2055A Air Washer and Humidifier

This 2-in-1 humidifier and air purifier washes and humidifies a room's air without evaporator mats or pads. Special humidifier discs turn through the water removing impurities from the air naturally, which provides two types of relief to allergy sufferers - cleaner air and more moisture during those dry fall/winter months. The discs, which never need to be replaced, have a great adhesion for water to guarantee high humidity output. Multiple discs also the 2055A to increase output by increasing the evaporative surface area inside the unit. After spending a great deal of time testing and trying out this unit, this is what how it compares to other humidifiers.

What I like about the Air-O-Swiss 2055A Air Washer

The best quality of this humidifier is how easy it is to clean and operate. There are no replacement filters or evaporator pads since the washable discs are the evaporative surface. Sediment or mineral content in the water settles out and is never vaporized since the 2055A air washer relies upon evaporation to humidify. The water tank is transparent and easy to remove, and the base, where trapped dust and other particles from the air, as well as hard water minerals, end up is easily wiped clean. The AirOSwiss 2055 is also one of the few humidifiers that you can use any type of water with and never worry about white dust, scale or softened water damaging metal components.

For the reason just mentioned above, the AOS 2055 comes with the most robust warranty of any Air-O-Swiss humidifier - a full ten years. This is over three times longer than any other model, but the technology is so simplistic in design that there are actually very few things that could go wrong. This model is also one of only a few made by Air-O-Swiss that is actually made in Switzerland.

The tank capacity if larger than many other Air-O-Swiss humidifiers available. At just under 2 gallons, even under the driest conditions you'll likely only fill this unit twice in a 24 hour period.

While the controls of this unit are the basic controls of the original 2055, the AOS 2055A has an automatic shut-off feature that the original model lacked. So when the tank is empty, the unit shuts itself off. Simply fill, plug in and turn on. That's it!

This humidifier uses a Hydro Cell that contains activated carbon to adsorb impurities in the water. There is no need to add chemicals to improve water quality, and because there is no vaporizing and no metal diaphragm, soft water, hard water, tap water, distilled water, any water - all works the same.

Energy usage for the Air-O-Swiss 2055A is very low. It will run all day for a fraction of what it costs to power a standard light bulb. This unit is also very quiet with near silent operation on low.

What I do not like about the Air-O-Swiss 2055A Air Washer

Compared to some models, the AOS 2055A does not put as much moisture in the air as quickly as ultrasonic humidifiers. In general, evaporative humidifiers are all like this - a more simplistic design, less things to go wrong, but slower moisture output. Still, the Air O Swiss 2055A is built to meet the humidification needs for most rooms.

Don't make the mistake of thinking that the 2055A could replace a HEPA air purifier. While it will remove some particulate from the air, it mainly targets larger particles and isn't meant to offer the same time of filtration an a more traditional air purifier. Instead, think of the air cleaning that it provides as a nice little bonus to the soothing moisture it puts back into your indoor air.

In summary, the AOS 2055A combines extremely simple operation with minimal energy use with solid humidifying. The 2055A airwasher features a sleek design with a fairly small footprint. While it won't humidify as quickly as an ultrasonic humidifier, with this airwasher there is never any need for using a specific type of water, and keeping it clean is easier than another other humidifier available. This dual use humidifier does cost more upfront but will outlast other styles and doesn't have replaceable parts other than the Hydro Cell. In all, the Air-O-Swiss 2055A is a respectable air washer, but a quality humidifier.

Why buy from Customer Testimonials
My son has always had a nagging cough when the weather gets colder, that persists all winter long. The Vornado Humidifier  seems to have helped him feel better, and I don't hear nearly as many late night coughing fits. Thanks!
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Additional Resources

Air-O-Swiss 2055A Air Washer User's Manual    AIROSWISS 2055 A Air Washer Owners Manual
Air-O-Swiss 2055A Humidifier Quick Setup Guide    AIROSWISS 2055 A Air Washer Set Up Guide
Compare Air-O-Swiss Humidifiers
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Humidifier Buying Guide
Humidifiers FAQ
Benefits of Home Humidification
Using a Humidifier


10 Year Limited Warranty


Discount AirOSwiss 2055A Air Washer Humidifier
Air-O-Swiss 2055A (Item#: AO0020) $399.99

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