Sitting squarely in the middle of the Air-O-Swiss humidifiers, the AOS 7147 is a medium sized ultrasonic humidifier
with full digital controls, a high moisture output, and solid reputation as a durable home humidifier. You can set the 7147 to emit either cool mist or, with the preheat function, a warm
mist that puts moisture back in the air to combat the effects of dry winter air in your home. For many, forced air heating systems
dry out the air to the point that it can damage furniture, while causing dry or cracked nasal passages, a sore throat, dry skin and even aggravate eczema. With an
efficient 7147 humidifier you can reduce the effects of dry air and keep your indoor climate comfortable. After testing the new
Air-O-Swiss 7147 ultrasonic humidifier, this is what we found.
What I like about the Air-O-Swiss 7147 Ultrasonic Humidifier
So what do I mean by medium or mid-size humidifier? Two things. First, the Air-O-Swiss 7147 is lightweight and compact. It's small
enough to fit on end tables or wherever you want to place it, and it's light enough to move whenever needed. Second, the tank capacity is
just over 1.3 gallons. So while it has a larger capacity than many of the smaller humidifiers out there, it is not as large as the most
robust Air-O-Swiss humidifier available.
Despite the size, it actually performs very well. Over a full day, provided you keep the tank full, it will put up to 3.5 gallons of
moisture back into the air in your home. Except in the most severe situation, this is enough to relief the itching, scratching, coughing, and
other symptoms that dry indoor air can cause. In terms of performance, this better than comparable brands.
The digital features are very similar to those featured in the latest humidifiers introduced by Air-O-Swiss. The AOS 7147 offers
full digital controls that allow you to set a relative humidity point while giving you the current rH reading of the room via an easily
read LCD display. The display also shows you when the humidifier needs to be cleaned and when the tank needs to be refilled. Sleep and Auto (using ITC) modes allow
the unit to function independently based on your desired humidity settings, and a preheat indicator lets you know when you are using
the 7147 as a warm mist or cool mist humidifier. Overall, the controls give you much greater versatility and precision than the manual version of
this humidifier, the 7145.
Like other Air-O-Swiss ultrasonic humidifiers, the 7147 uses a combined approach to ensure your humidifier is hygienic and safe to use.
The ultrasonic nature of this device uses high frequency vibrations to turn water in a mist, and it is these same vibrations that can also break down the cell walls of
microbes. Combined with this, Air-O-Swiss humidifiers use a Hydro Cell that contains activated carbon to filter the water. The demineralization cartridge housing is also treating with ionic silver while
the cartridge itself traps minerals like lime, calcium and other hard water minerals. Lastly, the preheat process heats the water to
176° F instead of boiling the water like traditional warm mist humidifiers, so there is no chance of burns should the unit
be knocked over or spilled. All of these features work together to reduce mineral build up
while controlling microbe growth and create a very safe, easy-to-use humidifier.
The dual mist feature and output make these humidifiers a great fit for most homes. With the dual mist, the Air-O-Swiss 7147 gives you the
option to either preheat the water where it comes out of the unit at just over 100° F or use the standard cool mist function where the mist
being emitted will be slightly less than room temperature. The output is sufficient for most homes where you want to keep the rH between 45-55%,
without having to refill the tank more than once or twice a day. Should you require more moisture in the air, the 7147 is capable of pushing
the rH of most rooms up over 60% with ease.
The materials and construction of some of the best quality, and from our perspective, we received nearly no complaints or returns on
these humidifiers. The three year warranty exceeds most offered by the industry and provides peace of mind should anything go wrong with
What I do not like about the Air-O-Swiss 7147 Ultrasonic Humidifier
The capacity of the tank may be a drawback for some. While the overall output can be quite high, this will likely mean refilling the tank 1-3 times per day. Aside from
this, I don't have many complaints with this model.
In all, the Air-O-Swiss 7147 humidifier is a great way to relieve symptoms associated with dry air in your home. This ultrasonic humidifier is
easy to use and maintain and gives you a variety of options and settings to customize this unit to meet your specific humidification
needs. The 7147 is durable and lightweight, easily moved to any room and fits with nearly any decor. The performance is on par with
the best in the industry, and the quality far exceeds that of models commonly found in big box retailers.