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Air-O-Swiss U600 Ultrasonic Warm & Cool Mist Humidifiers

Air-O-Swiss U600 Ultrasonic Humidifier

Model: AOS U600 | SKU: ai2443
  • Discontinued - This item is not currently available to order.

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  • Product Overview

    Create a healthier and more comfortable environment during the winter months or any time of year with the Air-O-Swiss U600 Ultrasonic Warm & Cool Mist Humidifier. This portable tabletop humidifier disperses 3.5 gallons of soothing moisture to cover spaces measuring up to 650 square feet. Top features include no-frill manual controls, a built-in hygrostat, a mist regulation dial, and a water refill indicator. Using ultrasonic vibration technology, the Air-O-Swiss AOS U600 Humidifier emits a micro-fine mist throughout your environment with virtually silent operation.

    Hassle-Free Manual Controls

    With easy-to-use manual dial controls, the Air-O-Swiss U600 Ultrasonic Humidifier makes setup and operation a breeze. Use the manual control panel to:

    • Set and Maintain Your Desired Humidity – Use the hygrostat dial to set your desired humidity level. Once your humidity level is reached, the humidifier will cycle on and off automatically to maintain your programmed level.
    • Regulate Mist Output – Use the mist regulation dial to control the amount of moisture released from low output to high output.
    • Know When It's Time To Refill – The refill indicator light automatically illuminates when it's time to refill the humidifier. You can also easily keep an eye on the water level with the transparent tank.

    Choice of Warm or Cool Mist Operation

    Count on the Air-O-Swiss U600 Ultrasonic Humidifier to provide comfortable warm or cool humidified air in any room of your home. To operate as a cool mist humidifier, fill the water tank with clean, cold water while the humidifier is unplugged. After turning on, water passes down through the base of the humidifier and flows through the demineralization cartridge. After mineral deposits are removed, the water is transformed into a fine invisible mist and is distributed throughout your space.

    When used as a warm mist humidifier, the Air-O-Swiss AOS U600 Humidifier uses a pre-heating function to heat the water before it is released as a soothing warm mist at 104 degrees F. Warm mist operation ensures that your heated room temperature does not drop significantly when the humidifier operates. Pre-heating also helps improve water quality maintenance.

    Additional Features

    The Air-O-Swiss Ultrasonic Humidifier U600 includes a number of additional features to help simplify operation.

    • Continuous Operation – Instead of programming the humidifier to automatically maintain your humidity, you can operate the unit continuously to meet the needs of your environment.
    • Demineralization Cartridge – The included demineralization cartridge removes mineral deposits from hard water that could lead to unhealthy white dust. The cartridge lasts up to 3 months and can be replaced with a new Air-O-Swiss Replacement Demineralization Cartridge or refilled with Air-O-Swiss Refill Granules.
    • Hydro Stick – Treated with an antimicrobial coating, the Air-O-Swiss Hydro Stick helps curb mold and mildew growth inside the humidifier and ensures fresh humidification performance in between recommended cleanings.
    • Titanium Membrane Housing – Heavy-duty titanium membrane housing ensures long-lasting use and guarantees fast dispersal of mist throughout your environment.

    Manufacturer's Warranty


    Manufacturer's Literature

    Owner's Manual
    Includes setup and usage instructions, safety tips, and maintenance information for the Air-O-Swiss AOS U600 Humidifier.

    What's In The Box?

    • Air-O-Swiss Ultrasonic Humidifier U600
    • Demineralization cartridge
    • Sample package of Air-O-Swiss EZCal Descaler and Cleaner
    • Owner's manual
  • Specifications

    Height14 in.
    Width9.5 in.
    Depth11 in.
    Weight8.8 lbs.
    Maximum Noise Level25 dB
    Programmable TimerNo
    Maximum Wattage125 W
    Voltage110-120 V
    Air FiltrationNo
    Type of HumidifierCool Mist and Warm Mist
    Humidifier TechnologyUltrasonic
    Coverage Area650 sq. ft.
    Ideal ForSingle Room
    Moisture Output Per Day3.5 gallons
    Fill TypeRemovable Water Reservoir
    Water Refill IndicatorYes
    Humidity Range30% to 80%
    Humidity DisplayNo
    Mist Output ControlYes
    Wick FilterNo
    Germ ProtectionYes
    Demineralization CartridgeYes
    Medicine CupNo
    Automatic Safety ShutoffYes
  • Frequently Asked Questions

    What is your return policy?

    We offer a 30-Day Money-Back Guarantee on all of our products. If you are not satisfied with your purchase for any reason, simply return the product to us within 30 days and we will process your refund. For policy details and exclusions, please read our full Return Policy

    What is your shipping policy?

    Standard shipping (3-6 business days) is free to the lower 48 states.

    Expedited shipping is available for select products. Shipping to Hawaii, Alaska, and Canada may incur an additional fee, depending on the items ordered. With the exception of Canada, we do not currently ship to international locations. Items typically ship 1-2 days after you place your order. For more information, visit our Shipping and Delivery page.

    What types of payment methods do you accept?

    We accept Visa, MasterCard, American Express, Discover Card, and Diners Club credit cards. Additionally, you can checkout using PayPal.

    As a Sylvane shopper, you can purchase with confidence knowing that your information will always remain confidential and secure at all times. Our website is tested daily for security flaws by a well-known third-party security firm. It also meets the security recommendations of the Department of Homeland Security's National Infrastructure Protection Center (NIPC) and passes the FBI's Twenty Most Critical Internet Security Vulnerabilities Test.

    After I place my order, when will my credit card be charged?

    Your credit card will be charged when your order is shipped.
    Want to submit an FAQ? Hold tight. We're enhancing this section to make it even more useful for you. Feel free to call us at 1-800-934-9194 for answers to any product-related questions.
  • Reviews

    View All Air-O-Swiss U600 Ultrasonic Humidifier Reviews


    by PowerReviews
    Air-O-Swiss U600 Ultrasonic Humidifier

    (based on 1 review)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



    • 3 Stars



    • 2 Stars



    • 1 Stars



    Reviewed by 1 customer

    Displaying review 1

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    (5 of 6 customers found this review helpful)



    By Christiane Cutter

    from USA

    Comments about Air-O-Swiss U600 Ultrasonic Humidifier:

    Very, very quiet! Easy to fill up.
    Like the Air-O-Swiss U600 very much!

    Displaying review 1

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