Air-O-Swiss AOS 7146 Travel Ultrasonic Humidifier

Air-O- Swiss AOS 7146 Review
  • Features - 70%
  • Design - 95%
  • Easy of Use - 100%
  • Performance - 90%
88.8 %

Air-O- Swiss AOS 7146 is a portable humidifier which you can carry along interminably during your travels. It is manufactured by Air-O-Swiss, which is a company based in Switzerland, renowned for making top quality humidifiers. Though, most of the humidifiers found in the market are bulky and non portable, this particular model is designed for those who want to breathe fresh air wherever they go.


Air-O-Swiss AOS 7146 Travel humidifier, on table


  • Very lightweight build.
  • Transcontinental AC adapter & Exchangeable plugs that support its use in both Europe & North America.
  • Small size & compact design means more convenience.
  • Very quiet operation and noise free.
  • Highly energy efficient. (Only 15 W power consumption)
  • Auto Shut off and Blue light indicator.

A soft fabric travel bag is provided with the humidifier to ensure convenient storage.

This portable humidifier from Air-O-Swiss has a decent set of features. Though, almost all are commonly found in modern humidifiers these days. The USP of this product is its compact design, lightweight & small size.

70/100 in the features department.


The humidifier is very usual in its design. It is intentionally built in a ‘Lilliput’ form to increase its convenience for traveling & portability. The device weighs less than 1lb, making it ideal to carry along with you. Though, the device weighs very little but the overall build quality is very solid and it gives the humidifier a sturdy feel.

Looks wise, the device looks very simple and basic.


Ease of use

Usage wise, this humidifier is very elementary and easy to use. The front panel has no buttons and just the adjustment dial to set the desired level of humidity.  There is a blue LED indicator which signifies that the humidifier is working in a normal manner. Once it turns red, it means that the device has run out of water. Once the bottle is empty, the device would turn off on its own. I have read, many people have found this blue LED very annoying. Though, it felt very soothing to my eyes.

A water bottle fits into the bottle neck adapter  which is present at the top of the humidifier. Though, the adapter is fairly sturdy but regular insertion & removal of bottles can be hectic at times due to its tight nature.

Cleaning this device is a very simple process, thanks to its basic design & assembly. As simple packaged water bottles are used as its source, there’s no concept of cleaning the ‘tanks’, as in bigger humidifiers.


The humidifier utilizes high-frequency vibrations to convert water into a very wispy cool mist and this mist is then spread throughout the room in a very “quiet” manner.

These ultra high frequency vibrations have the capability to kill the bacteria & other microbes present in the air.

The device requires a half liter(17 ounces bottle) as the water source and provides 1 gallon mist up to 24 hours, which is quite remarkable considering its size and is enough to humidify a room of 300-400 square feet.  Though, we wish it had the provision of using 1 liter bottles too.


Air-O-Swiss is a benchmark in the humidifier industry. The technology and innovation they put in each of their models is laudable. And yet again, they have set a high standard in portable humidifier segment with the AOS 7146.

Ideally, this device is meant for the people who love to travel and don’t want to compensate on healthy air. It’s a traveler’s delight, due to its light weight and compact design. Alternatively, it can also be used in offices, small rooms and cabins, etc.

The only minus I found in this device was its price. For its performing capabilities and much smaller output levels, the price was unrealistically a bit on the higher side.

Though on the whole, this model is a trendsetter with its unique size and portability and made for those who don’t mind spending some extra bucks for quality.