Air-O-Swiss 7147 Ultrasonic Humidifier

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Air-O-Swiss 7147 Ultrasonic Humidifier

  • Item #: AO0019
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Air-O-Swiss 7147 Ultrasonic Humidifier

As a versatile and easy-to-use warm mist or cool mist humidifier, you won't find many humidifiers that work as efficiently as the Air-O-Swiss 7147 Ultrasonic humidifier. Not only can you set the AOS 7147 to emit either a cool or warm humidifying mist, but this humidifier also comes equipped with an array of features that make it hygienic but convenient.

Soft-touch controls and an internal hygrostat allow you to set your desired humidity level and see the current humidity in the room with only a glance at the LCD display. Quality components like a titanium coated diaphragm ensure years of lasting service, and each piece is carefully constructed to create a humidifier that will put moisture back into the air in your home while soothing dry sinuses and skin.

As some of the most hygienic and safest humidifiers available, Air-O-Swiss humidifiers use an included Hydro Cell, Ag+ demineralization cartridge and ultrasonic vibrations to reduce hard mineral content and clean the water while keeping microbes in check. The result is a home humidifier that not only lasts longer but is extremely efficient at creating a comfortable indoor relative humidity level. Best for midsize rooms, the AIROSWISS 7147 humidifier is an easy choice for anyone coping with dry indoor conditions any time of the year.


  • High daily output, up to 3.5 gallons per day
  • Dual, warm mist and cool mist humidifier
  • Optional preheat function (heats water to 176° F) as well as Sleep and Automatic Modes (Intelligent Temperature Compensation - ITC)
  • The Hydro Cell, Ultrasonic Vibrations & Demineralization Cartridge work to capture minerals and destroy microbes in the water before they are dispersed into the air
  • An ionic silver treated demineralization cartridge works to kill microbes in the reservoir
  • Integrated humidity gauge & Dual Mist Output Regulator
  • Empty and Clean Tank Indicators
  • Ultrasonic diaphragm has a titanium membrane for greater durability
  • Compact, lightweight design
  • Transparent water tank
  • Quiet operation
  • Energy efficient
  • Three year warranty

Customer Reviews

2 Item(s)

Excellent quality, only a few minor annoyances
I originally purchased this to add some humidity to the house during the winter, and later repurposed it for the baby's room when we started a family. It's really easy to refill the tank, and recharging the demineralization cartrdge is fairly easy as well despite the seemingly daunting 28 steps on the included instructions. It's rugged, quiet, energy efficient, and it puts out a lot of moisture. We have a cheapie warm mist humidifier as well, and the moisture output seems several times higher from the Air-O-Swiss. It has a lot of options which I seldom use. I really like that it monitors the humidity- that feature alone is worth the price premium. I've had mold growth using other humidifiers, but not with this one. The touch controls are still functional after more than 2 years, beating out several smart phones, an iPad, and a stove for reliability. Complaints are that it doesn't remember the humidity setting when you shut it off though it does when you refill. If you don't shut it off when you refill, it can turn on and make quite a mess. It builds up condensation on the flat underside of the tank, so you have to let that drain for a few seconds when removing. There's no indicator for when the demineralization cartridge and ion stick quit functioning, but it's easy to notice the mineral and bacteria buildup form rapidly when they do. There's no scheduling function, though there is a sleep timer. The new style ion stick is not nearly as good as the old style. Finally, the warm steam function really doesn't work at all... it's simply slightly less cool mist. All in all, I'm very pleased with this humidifier. In a central location, it effectively humidified the entire house in the winter, going through 2 water tanks a day. In the baby's room, running only at night, it uses a tank every 2-4 days. My recommendations, if you buy this, are: 1 Buy some scrap silver pre-1965 dimes and tuck them behind the ion stick. Works better and is cheaper than ordering a replacement ion stick 2 For warm steam, fill the tank with hot water in addition to turning on the heater 3 Rotate the bottom steam vent backwards pointing toward the handle and pull up to remove when cleaning the machine. This space houses a ton of bacteria and mineral buildup 4 I use CLR foam to dissolve minerals, and bleach to kill the bacteria when I clean the unit. I've never needed to clean the tank itself, only the base.
Review by Andy C. / (Posted on 5/8/2015)
Very nice product
We bought this product as it was widely reviewed as one of the best in its class. We are very happy with the purchase. It is too soon to tell how much maintenance it will require, so for the moment I can only give 4 stars.
Review by A recent buyer / (Posted on 5/8/2015)

Air O Swiss 7147 Ultrasonic Humidifier Reviews

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Air-O-Swiss 7147 Ultrasonic Humidifier Additional Resources

Air-O-Swiss 7147 Humidifier User's Manual,Air-O-Swiss 7147 Setup Guide