Air-O-Swiss AOS 7146 Travel Ultrasonic Humidifier – Cool Mist Review



Air humidifiers offer a lot of health benefits and adds comfort by making the air you breathe a little more soothing, especially when you have trouble breathing. It also helps soothe dry skin in the colder seasons. It is great to have one at home but do you think it’s practical to have one that you can bring with you when you travel? That really depends.

The Air-O-Swiss AOS 7146 Travel Ultrasonic Humidifier is a portable unit that you can use perhaps when you’re staying at a hotel for a while or as a guest in a friend’s home. But is it really useful? And how effective is it from the regular humidifiers out there? In this review, we will take a look at its benefits and its performance, to help you decide if it’s something you would want to invest in.

Important Features and Specs

As the name suggests, the AOS 7146 Travel Ultrasonic Humidifier is compact enough to fit in your bag. It is a very small box-like item which uses a commercial bottled water for the water tank. How it works: you purchase any standard bottled water from a convenience store on your way to your destination or probably order it when you’re at the hotel (eliminates having to carry your own), insert the bottle adaptor to the opening in place of the cap, and put the bottle upside-down on the unit. A simple on dial will get it to start producing mist.

It is a rather interesting looking piece of device; some might agree it looks cute. It looks like a medicine box, really small, with dimensions of 2.6 x 4.4 x 3 inches, Width, Depth, and Height (WDH) and weighs only 1.3 pounds. It might even for your pocket. It comes in cool glossy white and other pastel colors like pink, green, and blue. The nozzle conveniently pulls out for use and snaps back in for extreme portability. It also includes a small travel bag and a cleaning brush.

The travel humidifier uses ultrasonic technology which creates high frequency vibrations to produce ultra-fine cool mist. It comes out of the foldable nozzle in a visible thin white moist air. This technology makes it very quiet. It features variable mist setting which you can control on the dial. Simply turn it to switch it on and keep going right for more mist.

The unit will automatically turn off once the bottle runs out of water. The nozzle also has a nice warm light which turns on when the unit is in use. Place it on an elevated surface to get the most mist in the room since it is very small. Please note that bottled waters above the standard 16 FL OZ are not recommended as it might overflow the unit.

You can also use it in your office, place it on your desk in case you find the air conditioning too dry. The power adapter is separate from the unit so it is easier to store in a travel bag. It’s like a mobile phone charger that you just connect to the unit and plug in to an outlet. It includes two interchangeable plugs for more versatile usage.

It is easy to clean and to put away. Once you’re done, simply remove the bottled water from the unit and dispose of it, and insert the bottle adapter back to the unit to keep it from being misplaced. Everything is washable except for the electrical parts and can be wiped with a microfiber cloth for best results. No other maintenance is necessary.


  • Very compact
  • Quiet
  • Has a foldout support feet to keep it from tipping over
  • Variable humidity
  • LED light is just bright enough not to be annoying when you’re sleeping
  • Easy to clean


  • Only lasts up to 4 – 5 hours on high mist setting
  • No other parts to keep the bottle in place so make sure it’s in a secure flat elevated surface
  • Only works for small rooms

Who Should Buy

If you travel a lot and have some trouble breathing, you may find this very useful. Or if you frequently go to places with very low humidity, this could help avoid dry skin, throat or nasal passage. It will also be convenient on times when you have the common cold or cough. This is great for when you’re staying at a hotel where the air conditioning does not offer humidity control.


The Air-O-Swiss AOS 7146 Travel Ultrasonic Humidifier – Cool Mist is one very handy gadget to have especially for those who have sensitive skin, allergies, or mild respiratory problems who travel a lot. This unit costs about the same as most standard full-sized humidifiers but the portability is worth the price.