Air-O-Swiss Ultrasonic 7133 Review

What reviewers like:
Extremely quiet operation, effective humidification and antibacterial technology are most often given as the Air-O-Swiss Ultrasonic 7133's main strengths, with owners adding that it's easy to clean and maintain.

What reviewers don't like:
The most commonly cited drawback of the Air-O-Swiss Ultrasonic 7133 is that it might generate white dust, and a few owners say that their humidifiers were not durable and broke down.

Air-O-Swiss Ultrasonic 7133 review highlights

Professional reviewers recommend the Air-O-Swiss Ultrasonic 7133 humidifier for being reliable, near-silent and easy to clean and maintain. Experts also cite plusses like its antimicrobial silver stick, compact footprint and ability to generate either cool or warm mist. Owner evaluations focus on its quiet and effective operation over the rated area of 600 square feet, though a few complaints arise about its durability and the generation of white dust. Another ultrasonic humidifier in the same price range, the Germ Guardian H2000 (*est. $130), covers a smaller space but is also recommended by professional reviewers.

Allergy Buyers Club has an expert evaluation of the Air-O-Swiss Ultrasonic 7133 humidifier that's the best review we found, giving it an overall rating and detailing its main features. An article on the sister site, Allergy Consumer Review, provides an additional comparative view of the Air-O-Swiss humidifier line. A brief expert review is also available from Consumer Guide, though there's little evidence that the humidifier was actually tested. For owner evaluations, Amazon.com offers a range of opinions with about 40 reviews while Epinions' handful of postings are generally less useful.

Also see full report: Humidifiers

*In order of credibility (see our Ratings Criteria).

1. Allergy Buyers Club.com
Air-O-Swiss Ultrasonic Humidifiers – Model 7133
Editors of Allergy Buyers Club

This site awards its highest rating of "excellent" to the Air-O-Swiss 7133, with the editors commending its sleek design, virtually silent operation and ability to generate warm or cool mist. They also like the silver stick that prevents microbial growth and the demineralization cartridge, which is designed to minimize white dust.

2. Allergy Consumer Review.com
Which Humidifier is Best – Warm Mist or Cool Mist Humidifiers?
Mercia Tapping
Apr. 2007

A comparative review from Allergy Buyers Club's president recommends the Air-O-Swiss 7133 humidifier for ease of cleaning (owing to the silver stick that eliminates filter changes), as well as noiseless operation and reliability.

3. Amazon.com
Air-O-Swiss AOS7133 "NEW" Ultrasonic Antimicrobial Cool/Warm Mist Humidifier Reviews
Contributors to Amazon.com

The majority of the users posting here give the Air-O-Swiss 7133 favorable reviews, saying its quiet, effective operation and easy maintenance are worth the somewhat high cost. Negative postings warn of white dust, and a few claim their Air-o-Swiss humidifiers broke down.

4. Epinions
Air-O-Swiss 7133 2 Gallon Humidifier Reviews
Contributors to Epinions

Just a handful of users review the Air-O-Swiss 7133, saying it's quiet, efficient and easy to clean but there are a couple of complaints that it generates white dust.

5. Consumer Guide.com
Expert Review: Air-O-Swiss 7133 humidifier
Editors of ConsumerGuide.com

The reviewer here gives the Air-O-Swiss 7133 humidifier a "best buy" recommendation, praising its compact but powerful design, ability to produce either cool or warm mist and antibacterial silver stick. However, it's not clear that the unit was actually tested.

Also see full report: Humidifiers

Air-O-Swiss Ultrasonic 7133 Review