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  • Air-O-Swiss AOS 7144 Ultrasonic Humidifier
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Air-O-Swiss AOS 7144 Ultrasonic Humidifier

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List Price: $229.99
Price: $199.99 & FREE Shipping. Details
You Save: $30.00 (13%)
Only 2 left in stock.
Sold by Quidsi Retail LLC and Fulfilled by Amazon. Gift-wrap available.
  • Humidifies the air in rooms up to 650 sq. ft. - 3.5 gallons / 24 hrs* - when used w/pre-heating to 176 degrees
  • AIR-O-SWISS ITC technology (Intelligent Temperature Compensation) automatically regulates the output to create the most comfortable relative humidity adjusted to the temperature in the room
  • Industrial strength titanium membrane surface, the quality of which guarantees fast dispersal of mist into that air and ensures long lasting use
  • Powerful and replaceable Demineralization cartridge that is treated with silver (Ag+ Ionic Silver Technology)
  • Large digital display of Hygrostat (humidify) level, Mist output levels, Timer settings, with Empty and Cleaning indicators
8 new from $179.99 3 used from $147.54 1 collectible from $149.99

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$199.99 & FREE Shipping. Details Only 2 left in stock. Sold by Quidsi Retail LLC and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

Air-O-Swiss AOS 7144 Ultrasonic Humidifier + Air-O-Swiss AOS 7531 Demineralization Cartridge + Air-O-Swiss AOS 7417 EZ Cal - Cleaner/Descaler - 3 pack
Price for all three: $225.93

Buy the selected items together

Special Offers and Product Promotions

  • Buy Used and Save: Buy a Used "Air-O-Swiss AOS 7144 Ultrasonic Humidifier" and save 35% off the $229.99 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Description

This Digital Ultrasonic humidifier uses high-frequency vibrations to generate a micro-fine mist when blown into a room immediately evaporates. Choose the pre-heating function and mist exits the appliance at a pleasant 104° F. ITC technology (Intelligent Temperature Compensation) monitors the temperature and automatically adjusts the output when conditions change. A replaceable demineralization (Ag+ Ionic Silver Technology) cartridge ensures water mist without lime scale or mineral residues. The included Hydro Cell helps keep the humidifier clean and fresh longer.

Special Notes: If the filter is not soaked prior to use, it can create a bottleneck and not allow water to flow into the base of the unit. If there is no water in the base, the unit will not produce mist and give the appearance that the motor is broken. If cold water is used to fill the unit, it will not produce a mist until the water is heated up on the warm mist setting, which can take up to 30 minutes.

Product Details

Manual [PDF]| Manual [PDF]
  • Product Dimensions: 11 x 16.1 x 15.6 inches ; 8 pounds
  • Shipping Weight: 12.1 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B001GWW2I4
  • Item model number: 34478
  • Average Customer Review: 3.4 out of 5 stars  See all reviews (202 customer reviews)
  • Amazon Best Sellers Rank: #89,377 in Home & Kitchen (See Top 100 in Home & Kitchen)
  • Product Warranty: For warranty information about this product, please click here

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Customer Questions & Answers

Customer Reviews

3.4 out of 5 stars

Most Helpful Customer Reviews

413 of 418 people found the following review helpful By F.Y.I. on March 5, 2009
Verified Purchase
My family and I moved from Southern California (where we slept with the windows open nearly year round for wonderful, well rested sleep) to Phoenix, Arizona (where the humidity hovers at most to 15% in my house according to my hygrometer.) After a month (and before we got the humidifier), my kids (3 and 1) were absolutely suffering. During the night, they were choking and hacking, wheezing and just plugged up. I was no different. Needless to say, our sleep was badly affected. I knew it was the air situation. After 3 nights of researching the different types of humidifiers, I finally settled on buying two Air O Swiss 7144 units (one for each kid's room). Although it was expensive, I buy things for the long haul and figured better to spend up front then have problems with cheaper models down the road. I have since turned it on absolutely every single night for them and the difference is short of miraculous. Here are some points:

1- a full tank lasts two nights running at 8 hours a night with the windows closed and the door nearly shut (about an inch ajar at most)

2- tank is not difficult to fill. I use one 3 gallon water bottle
(normally used for my drinking water dispense) to completely fill up both humidifier units

3- to maximize space and thus get the most water into the humidifier, I removed the demineralization cartridge and use only reverse osmosis drinking water for my unit. I have had ZERO WHITE DUST. The R.O. water is purified enough that there are no remaining minerals to be churned out as white dust. This trick also saves me from having to replace the cartridge. (BTW, our tap water is VERY hard so I didn't want to use it even with the demineralization cartridge because why make the machine work harder than it has to?) R.O.
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411 of 432 people found the following review helpful By Alan P. on November 17, 2010
Verified Purchase
I searched long and hard to find a humidifier that would meet my needs. Unfortunately, I couldn't find one, so this is what I ended up with. Kind of harsh to start out with, I know, but I'm just being honest. I wanted a humidifer, first and foremost that was quiet, so I started looking at Ultrasonic Humidifiers. Ultrasonic humidifers are notorious for emitting a white dust as they work which is actually dissolved minerals in the water. I did not see this as an issue as I will be using RO (Reverse Osmosis) water to fill it. Next, a Humidistat. Suprisingly few humidifers actually come with humidistats, even among the higher priced units. A unit with a humidistat will control the the humidity level of a room by constantly measuring the humidity and turning the unit on or off based upon the preset user selectable setting, much like a thermostat does for heating and cooling. Many units simply have Low Medium and High settings, or some variation thereof which makes it difficlult to control the humidity level with any precision.

I chose the 7144 for a few reasons, the Primary of which were the features talked about above combined with the minimal footprint and elegant modern look. The unit is fairly quiet, although even when not working the fan runs. A fan is used to propel the mist into the room making for a more efficient introduction of moisture to the environment, however when the unit is at rest and not calling for humidity, I see no reason this fan needs to be running. This is both a waste issue as it is using energy and a noise issue as, although the unit is fairly quiet, the fan can still be heard when it is running.

The Water tank is undersized for the the unit.
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70 of 73 people found the following review helpful By Kitrax on January 13, 2010
Verified Purchase
This is my 2nd purchase of this same unit...we needed another one for the living room. I have not had a single issue with either of them. One has been running for ~8 straight months with no need for cleaning (because there's nothing to clean off it). My newest one is only 2 weeks old. They both work flawlessly.

You need to realize that this humidifier is ultrasonic, which has many advantages over "swamp cooler" style humidifiers, but they have a few things to keep in mind. If you didn't know, an ultrasonic humidifier uses a piezoelectric transducer element that vibrates at ultrasonic speeds. This causes water molecules to break off from the rest of the pool and it becomes vapor. In doing so, it also rips the mineral deposits apart from the water. This is that "white dust" you hear about. It's bad. It will accumulate pretty much everywhere in, on, and around the humidifier...including the ultrasonic element. Minerals are abrasive...and they *could* essentially "sand" away the finish on the element over time. That's bad, but it's not the manufacturer's fault by any means...it's *your* fault for using hard water.

Now, with that elementary stuff out of the way, RO water good enough for daily use with the demineralization cartridge. The "white dust" may be non-existent to your eyes, but there are still trace minerals in RO water and the cartridge in the tank can't remove everything, so they'll build up over time. That's why you have to clean it every few months. I removed the cartridge and use a mix of distilled water (from the store) and free de-ionized water from my work. I get the best performance this way. If I ever get my reverse osmosis system fixed, I might us a mix of RO water and DI water to save some $$$.

So how about some features to consider:

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