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  • Air-O-Swiss AOS 7147 Ultrasonic Humidifier - Warm and Cool Mist
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Air-O-Swiss AOS 7147 Ultrasonic Humidifier - Warm and Cool Mist

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List Price: $199.99
Price: $169.99 & FREE Shipping. Details
You Save: $30.00 (15%)
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  • Humidifies the air in rooms up to 600 sq ft (55m²)
  • State-of-the-art design with surface touch controls
  • AIR-O-SWISS ITC technology (Intelligent Temperature Compensation) automatically regulates the output to create the most comfortable relative humidity adjusted to the temperature in your room
  • Sleep mode: the unit pre-determines a comfortable night humidity level
  • Timer allows pre-set use for 1 to 8 hours or continuous operation
10 new from $169.99 22 used from $118.99

Top Air Purifiers Be prepared for Unexpected Weather with these Top Weather Stations

Frequently Bought Together

Air-O-Swiss AOS 7147 Ultrasonic Humidifier - Warm and Cool Mist + Air-O-Swiss AOS 7531 Demineralization Cartridge + Air-O-Swiss AOS 7417 EZ Cal - Cleaner/Descaler - 3 pack
Price for all three: $193.97

Buy the selected items together

Special Offers and Product Promotions

Size: 1-ct
  • Buy Used and Save: Buy a Used "Air-O-Swiss AOS 7147 Ultrasonic Humidifier - Warm ..." and save 40% off the $199.99 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.
  • Six-Month Financing: For a limited time, purchase $149 or more using the Amazon.com Store Card and pay no interest for 6 months on your entire order if paid in full in 6 months. Interest will be charged to your account from the purchase date if the promotional balance is not paid in full within 6 months. Minimum monthly payments required. Subject to credit approval. 1-Click and phone orders do not apply. See complete details and restrictions.

Product Details

Size: 1-ct
Manual [PDF]
  • Product Dimensions: 14 x 11.6 x 11.6 inches ; 9 pounds
  • Shipping Weight: 9.3 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • Origin: Korea, Republic of
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B004FO9P8U
  • Item model number: 36430
  • Average Customer Review: 3.8 out of 5 stars  See all reviews (309 customer reviews)
  • Amazon Best Sellers Rank: #7,464 in Home & Kitchen (See Top 100 in Home & Kitchen)
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Product Description

AOS 7147

Trusted Swiss Company For Over 50 Years

AIR-O-SWISS products have been available in North America since 2001. You can depend on the reliability of AIR-O-SWISS, whose parent company has been a trusted Swiss company and manufacturer since 1956. AIR-O-SWISS uses high quality components, such as a non corrosive titanium membrane that provides years of trouble-free operation.

AIR-O-SWISS 7147 Ultrasonic

Smart and Efficient Ultrasonic Humidifier

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 cartridge ensures a water mist without lime scale or mineral residues. The included Hydro Cell provides constant freshness in your humidifier.

  • Surface touch controls
  • Warm or cool mist
  • Easy use with ITC Technology


Warm or Cool Mist

Choose between warm or cool mist to maintain desired room temperature

Digital Display

State-of-the-art digital display featuring surface touch controls

Essential Accessories Included

The included water treatment accessories aid in achieving clean mist (Hydro Cell, DMC & EZCal)


Choose between warm or cool mist to maintain desired room temperature

Essential Water Treatment Accessories (AIR-O-SWISS)

Demineralization Cartridge (AOS 7531) ASIN - B000J4LCQ8

When properly installed and maintained, this cartridge effectively prevents the release of minerals in the air. Please exchange cartridge every 2 – 3 months, hard water usage may require more frequent replacement.

Hydro Cell (AOS A200) ASIN - B00E3ZVQ2O

The Hydro Cell uses activated carbon technology to provide constant freshness in AIR-O-SWISS humidifiers.This advanced water maintenance system keeps your humidifier operating at its highest level between recommended cleanings. To ensure the highest water quality in your humidifier, exchange the Hydro Cell every 1 to 2 months, depending on the water quality.

EZCal Cleaner and Descaler (AOS 7417) ASIN - B000XPI5QS

Cleans and descales every AIR-O-SWISS product, and cleans mineral build-up. Simple and safe to use - EZCal ensures a clean humidifier and continuous high performance. One box includes 3 individual packets, use just one packet per cleaning. For best results use EZCal every two weeks depending on the water hardness.

AOS U200 AOS 7147 AOS 7135 AOS U650 AOS S450 AOS U700 (NEW)
Warm or Cool Mist Cool Mist only Warm or Cool Mist Warm or Cool Mist Warm or Cool Mist Warm Steam Mist Warm or Cool Mist
Analog or Digital Analog Digital Digital Digital Digital Digital
For rooms up to 430 sq. ft. 600 sq. ft. 650 sq. ft. 650 sq. ft. 860 sq. ft. 1000 sq. ft.
Humidity level up to 1.8 gallons / 24 hours 3 gallons / 24 hours 3.5 gallons / 24 hours 3.5 gallons / 24 hours 3.5 gallons / 24 hours 4 gallons / 24 hours
Water tank size 1 gallon 1.5 gallons 1.75 gallons 1.5 gallons 2 gallons 2.4 gallons
ITC Technology
Self-cleaning mode
Included accessories Demineralization Cartridge, Hydro Cell & EZCal Demineralization Cartridge, Hydro Cell & EZCal Demineralization Cartridge, Hydro Cell & EZCal Demineralization Cartridge, Hydro Cell & EZCal Anti-Mineral Pads & EZCal Demineralization Cartridge, Hydro Cell & EZCal
System Ultrasonic Ultrasonic Ultrasonic Ultrasonic Steam Humidifier Ultrasonic

Customer Questions & Answers

Customer Reviews

Very quiet and easy to use.
Michael Archuleta
I followed all the instructions in the manual, but nothing fixed the problem.
paula j. maixner
I've had similar products but this is much better.
Debbie Hoffman

Most Helpful Customer Reviews

232 of 242 people found the following review helpful By FFDR TOP 1000 REVIEWER on November 19, 2012
Size Name: 1-ct Verified Purchase
Researching humidifiers on Amazon was a somewhat tiresome exercise. Almost all products I looked at are subject to very serious complaints, most importantly noise, leakage, and lack of reliability. I decided to go with the AOS 7147 because most reviewers agree that it is really quiet, and because I liked the clean look and the features.

Here is what I can report after about a week of usage (will update if anything changes over time):

Noise level: Both my wife and I are extremely noise sensitive, but this unit can operate in our bedroom without affecting our sleep. Yes, there is a bit of a humming noise, but it is barely audible. Also there is a bubbling noise once in a while when water flows out of the tank into the tray. All-in-all, it seems about as quiet as can reasonably be expected.

Effectiveness: We use the auto setting that lets the device decide the target level of humidity and the output level. This works very well and hassle free, keeping the room comfortably moist.

Warm mist setting: I would recommend having it. Without it the room feels cool and damp. Even with using it there is a bit of a cooling effect, but it is acceptable.

Filtering/water treatment: We did not see any white dust around the unit, which was a concern.

Reliability/ease of use: No problems so far, straight-forward to operate, everything works as intended. I will post updates, if something comes up.

Look: Matters more than you would think, because it is supposed to be three feet away from the ground and away from both heating and return vents. Inevitably it will end up in a rather visible place. This unit has a bit of a techy, but overall relatively neutral look, better than most.

In summary, I am very happy with this unit.
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215 of 227 people found the following review helpful By Ken430TX on January 31, 2012
Size Name: 1-ct Verified Purchase
The 7147 is the quietest humidifier we have ever owned. It has easy to read digital controls, and the humidistat stays within one degree of one that also hangs on the wall in our bedroom. The filters do their job nicely and the warm mist setting keeps the room from feeling clammy.

The only issues I have with this humidifier is the way in which it is refilled. The oddly shaped top tank lifts off the pedestal control base and the refill opening is on the bottom of the tank. When you lift the tank off the pedestal daily to refill water drips everywhere as the tank sits in a pool of water. You then flip over the tank and remove the fill cap, which also happens to be connected to the filter! When you pull the filter out (which is filled with water) it drips everywhere! You then hold the oddly shaped tank upside down to refill. Since the top is now the bottom, and it is not flat you cannot set down the tank to refill. You also must contend with the nozzle where the mist sprays from, making a refill quite a challenge without getting everything around you wet!

Then you must re-insert the filter cartridge to seal the tank which displaces water. Since there is no fill line, it is easy to overfill the tank, and when the water is then displaced by the filter as you close the tank it squirts out! A simple opening on the top could have easily eliminated this problem!

The filler issue is the reason I rated the item a four out of five. It could and should be much better! Also, the controls do not remember previous settings once turned off, so you must reset your desired humidity level and fan speed each time you turn on the machine. It would be nice if previous settings were remembered!
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158 of 166 people found the following review helpful By Bleudenim on January 9, 2012
Size Name: 1-ct Verified Purchase
We have been so pleased with the performance of the original Air-O-Swiss AOS 7145 Ultrasonic Humidifier - Cool Mist in our 300 sq.ft. bedroom that we decided to upgrade and put the 7145 in our son's room. The AOS 7147 is identical to the 7145 with some excellent additional features. I love the controls that provide; readings of the current humidity level, ability to set the desired target humidity level, and the ability to pre-heat the water to improve efficiency.

The one thing about which I have a minor complaint is the mist output level control. The 7145 has a dial control that allows for a continuous adjustment of the mist output. The 7147 touch controls provide only 3 absolute settings: low, high & high+. Frankly, I prefer the continuously variable mist output control of the 7145.

We are relegated to using well water which pretty much "eats up" wicks in evaporative type humidifiers, forcing frequent and costly replacements several times in a season. The mineral cartridge included with both the 7145 & the 7147 (but not needed where water is soft) does its job in treating hard water so the humidifier works as intended.

In the end I find this to be a product well worth the cost. Maintenance is easy, expensive replacement wicks are unnecessary, and the humidifier is reliable. I highly recommend this to anyone, but especially where hard water is an issue.

(Update 02/18/13)
Still using this daily without any problems. Still gives whisper quiet operation (the less expensive 7145 is a bit noisy, but not loud). Because of its very quiet operation, this 7147 would be an excellent choice for a baby's or child's room.
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Most Recent Customer Reviews