Air O Swiss 2055D Digital Air Washer Humidifiers

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The Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack has been discontinued.

Control the humidity and clean your air at the same time with the Air-O-Swiss AOS 2055D Digital Air Washer. Humidifiers by AIR-O-SWISS make excellent room humidifiers for your home or office. See our expert ratings and reviews.

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The Air-O-Swiss 2055D Air Washer has been discontinued and is no longer available for purchase. We recommend the Air-O-Swiss AOS 2055A Air Washer as an alternative.

The beauty of the Air-O-Swiss 2055D air washers is that in addition to being a humidifier, it traps pet hair, large dust and pollen particles in its base unit which can be easily cleaned. The Air-O-Swiss 2055D digital model features a hygrostat for automatic monitoring of humidity levels and is for large areas up to 750 sq. ft.

See all Air-O-Swiss replacement filters and accessories.
  • Suffers from allergies, asthma or sinus pressure and wants a portable humidifier and air cleaner in one to ensure a healthy environment
  • Needs relief from sore throat, dry nose, lips or skin
  • Needs a virtually silent humidifier for a bedroom, office, family room up to 750 sq. ft.
  • Doesn't want to change traditional filters on a unit

  • Self-regulating principle of evaporation guarantees an optimal level of humidification
  • Special humidifier discs turn through the water removing impurities from the air naturally, which gives great relief to allergy sufferers
  • Humidification performance: up to 3.0 GPD humidity
  • Room coverage: up to 750 sq. ft.
  • Digital control of air humidity
  • Hydro Stick provides constant freshness in humidifier
  • Unit is fitted with a hygrostat that measures the relative air humidity and automatically switches the appliance off when desired level is reached. The setting for the relative humidity ranges from 30 to 70% while relative humidity between 40 and 50% is recommended
  • Fragrance capsule lets you optionally humidify and scent a room simultaneously by simply placing a piece of cotton with your favorite scent into the capsuleNoise level less than 25 dBA (the same level as the breathing of a sleeping baby)Cable storage
  • Transparent, removable water tank
  • Simple handling, easy to clean (Discs are dishwasher safe. Please note: DO NOT wash at temperatures above 131°F/55° - otherwise the humidification discs can become deformed)
  • High quality components with long service life
The recommended cleaning intervals depend on the air and water quality, as well as operating times. The upper part of the housing and fan should be removed and wiped out thoroughly with a damp cleaning cloth once to twice a year. Every two weeks the water tank and base should be cleaned and rinsed with a household detergent. Every 4 weeks the humidifying discs should be cleansed since it will accumulate a thin lime scale that increases the humidity output. They can be easily removed by using the multifunctional fragrance container, which also acts as the disc key.

Replacements: The Hydro Stick is an advanced water maintenance system that ensures your humidifier's functionality while providing fresh humidification performance. It needs to be exchanged a year after it has first been used.

See all Air-O-Swiss replacement filters and accessories.
1. Room Coverage
2. Level of Quietness
3. Filter Life & Cost of Replacement Cartridges
4. Amount of Maintenance Required
5. Anti-bacterial Features
6. Ease of Filling
7. Ease of Operation and Filter Replacement
8. Quality of Construction
9. Humidistat to select desired humidity level & hygrometer to display the actual humidity in the room
10. Frequency of Filling
11. Value for Price

The Air-O-Swiss 2055D Air Washer provides humidification for a large area and at the same time will clean the air of allergens including dust, pollen, and mold. It also offers easy room humidity monitoring through its digital humidistat to set the desired humidity level while displaying the actual humidity at all times.


  • Great choice for those who wish to humidify a room and remove larger dust particles, pollen and pet dander from the air. The allergens are collected in the base of the unit and can then be easily rinsed and cleaned out.
  • Unlike other air washers, the 2055D model is equipped with a digital humidistat to monitor humidity levels throughout its use
  • Constructed of durable, high quality components and will provide reliable humidification for years
  • A 10 year warranty is the best we've seen for a humidifier.


  • Does not effectively clean the air as compared to having a separate air purifier
  • Due to the small opening, cleaning the tank can be difficult and more time consuming


With its technology and robust design, the 2055D digital air washer can provide optimum humidification while also removing medium to large particles from the air. Additionally, this is done in one easy-to-operate machine! With its built-in hygrostat and digital display you have full control when seeking the desired humidity level. A 10 year warranty on this product can not be beat!

Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack


Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack

  • Replaces the Air-O-Swiss Hydro Stick
  • Place Hydro Cell inside the water tank
  • Advanced water maintenance system provides constant freshness in the humidifier
  • Keeps the humidifier operating at its highest level between recommended cleanings
  • Recommend replacing every 1-2 months depending on water quality
  • Can be used with all Air-O-Swiss models and other humidifier brands

Technical Specifications of Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack

  Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack

Video Reviews of Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack

Filters & Accessories for Replacement Boneco & Air-O-Swiss Hydro Cell 2-Pack