Air-O-Swiss 1355N Air Washer and Humidifier

Air-O-Swiss 1355N Air Washer


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Air-O-Swiss 1355N Air Washer and Humidifier

This 2-in-1 humidifier and purifier washes and humidifies a room's air without evaporator mats. Special humidifier discs turn through the water removing impurities from the air naturally which is a great relief to allergy sufferers. Therefore, it is called an Air Washer. The discs, which never need replacing, have a great adhesion for water to guarantee high humidity output.

The basic principles behind the AOS 1355N Air Washer are simple. As the disc rotates through the water, water and particles in the air bathe each disc. As the water evaporates and is dispersed throughout the room, the particles remain. They are initially held by the water, but continue to cling to the disc because of the pre-ionizer. Because the 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. When dirty, simply remove and wash the discs, wipe out the tank, and the Air Washer is ready to go!

Air-O-Swiss 1355N Product Specifications

  • Main Voltage 120 V / 60 Hz
  • Power Consumption: 20 W
  • Weight: 13 lbs.
  • Size Dimensions: 14.9" x 12.6" x 16.7"
  • Maximum Coverage: 600 sq. ft.
  • Maximum Humidity Output: 2.4 gallons a day
  • Tank Capacity: 1.85 Gal. (7 L)
  • No chemical additives required

Air-O-Swiss 1355N Product Features

  • Dual output control for night and power mode
  • Hydro Stick works to keep water tank clean between washings
  • No replacement filters or evaporator mats required
  • Transparent and removable water tank
  • Easy to clean and operate
  • Quality components to ensure lasting use
  • Ultra Quiet operation for use in the bedroom

Product Reviews and Questions

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Customer Q & A

Q1: Does this product have a humidistat on it? If not what is the range of humidity does it generally keep?

A: No, this model does not have a humidistat. With this model, like others that lack a digital humidity gauge, you will want to get a stand alone humidity gauge to keep track of the moisture in the air. In general though, air washers put less moisture into the air than ultrasonic or true warm mist humidifiers. Hope that helps!

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Air-O-Swiss Reviews
Air-O-Swiss 1355N Air Washer and Humidifier

The Air-O-Swiss 1355N is a 2-in-1 humidifier and air purifier that washes and humidifies a room's air without evaporator mats. Like the Air-O-Swiss 2055, this humidifier uses special humidifier discs that turn through the water and remove large dust and pollen particles from the air naturally, which gives great relief to allergy sufferers. The discs have a great adhesion for water to guarantee high humidity output, and by using multiple discs, humidity output is even more significant due to an increased evaporative surface area inside the unit.

What I like about the Air-O-Swiss 1355N Air Washer

The dual use of the Air-O-Swiss 1355N is likely its most unique and most valuable feature. While other humidifiers simply work on putting clean cool moisture back in the air, the 1355N Air Washer actually helps remove particles and debris from the air. So the unit not only humidifies the air, but it cleans the air as well.

The 1355N Air Washer is easy to maintain, clean, and operate. There are no filters or evaporator mats to replace. The water tank is transparent and easy to remove. The discs are dishwasher safe and the inside of the unit is very easy to clean.

Lastly, there are no demineralization cartridges to replace. Because air washers operate on the principle of evaporation, mineral content in the water simply settles in the tank itself or on the rotating discs. This turns the cost of replacing or refilling cartridges into simply wiping the bottom of the reservoir out with a damp cloth and cleaning the discs.

What I do not like about the Air-O-Swiss 1355N Air Washer

Unlike other Air-O-Swiss humidifiers, one thing I did not like about the AOS 1355N was that it has a smaller tank than some of the other models. Though it will put nearly two gallons of water back into the air during a 24 hour period. At that rate, you should only need to fill the tank once per day.

Secondly, the unit does not have the digital control over the humidification output that some of the other Air-O-Swiss units offer. Because it lacks these controls, you may want to invest in a hygrometer or external humidistat to accurately gauge relative humidity levels.

In summary, the AOS 1355N combines simple operation with minimal energy use. This unit is nearly silent and works great in the bedroom for a light sleeper. The unit's sleek design minimizes its footprint in your bedroom or living area, and most importantly, it not only humidifies your room, but also cleans the air. Coupled with a hygrometer, the Air-O-Swiss 1355N is an ideal unit for allergy and asthma sufferers or those concerned with dry skin or eczema.

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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Humidifier Resources

Additional Resources

Air-O-Swiss 1355N Humidifier User Manual  (PDF)
Compare Air-O-Swiss Humidifiers
Compare Humidifiers
Humidifier Buying Guide
Humidifiers FAQ
Benefits of Home Humidification
Using a Humidifier


3 Year Limited Warranty


Air-O-Swiss 1355N Air Washer (Item#: AO0007) (Discontinued)

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