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Vornado AQS15 Air Quality System
From Vornado

Vornado Vortex action circulates and cleans all the air in the room using 99.97% efficient True HEPA filtration. High performance output in rooms as large as 12' x 16' at 6 ACH. 3 spped control. PreSorb activated carbon prefilter reduces odors and many organic compounds. Thoughtful engineering and design features include a top clean air outlet for effective room air filtration, cost efficient "24/7" operation, easy maintenance, small footprint and distinctive sculptural shape. Vornado...The most trusted name in comfort for over 50 years.

• Amazon Sales Rank: #302974 in Kitchen & Housewares
• Color: Greystone
• Brand: Vornado
• Model: AC1-0005-02
• Released on: 2005-03-29
• Dimensions: 15.00" h x 10.00" w x 14.00" l, 11.00 pounds

By continuously circulating a room's air through two filters, this portable air cleaner removes smoke, pollen, dust, animal dander, dust mites, molds, bacteria, viruses, and odors. Invaluable for those who suffer from allergies or asthma, the cleaner contains a true HEPA filter that is at least 99.9 percent effective at trapping extremely tiny particles--and actually gets better with use, as captured particles catch other particles. A prefilter reduces odors. The cleaner measures 14-3/4 by 13-3/4 by 10 inches and, because the air exits upward, can be placed behind furniture. Recommended for rooms up to 233 square feet, the cleaner has three speeds for different-size rooms. The HEPA filter lasts two to four years, the prefilter three months. (Two extra prefilters are included.) Filter replacement is simple: Lift off the front, unhook the elastic straps, remove the prefilter and/or HEPA filter, position the new filter(s), and hook up the straps. --Fred Brack

Nice machine, but too loud
I just purchased all three Vornado air filters: the AQS15, AQS25, and the AQS35. All have the same basic design, and the higher the model number, the larger the size. The AQS25 and 35 deserve five stars: good design, and quiet operation. The AQS15, however, has one major problem. It is loud. On its lowest setting (of the three speeds it has), it is as loud as either of its bigger siblings on their highest settings! The AQS15 is so loud that I personally can't stand to be in the same room with it. An air filter should be seen and not heard. I don't know why it is so loud, possibly because of its small size and the huge volume of air that it moves. I own other Vornado products, such as their heater, fans, and humidifier. This is the first time Vornado has disappointed me.

Bottom line: if you want a *quiet*, high quality HEPA air filter, get the AQS25 or 35. The AQS25 is the best buy for the money. On the other hand, if you don't mind having a filter that sounds like an old fashioned 9-horsepower box fan, then get the AQS15. Aside from the Vornado design, the only thing this filter has going for it is its small size.

Love it!
It is a loud machine but it's great for me because I live on a noisy street and it blocks out all the other sounds so I can sleep at night! It works great too, and it's small in size and not heavy, so when I have people over that smoke I move it to the living room or wherever we are and it completely eliminates the smell.

Perfect for City Environment
Works great, but also generates enough white noise to drown out street noise and neighbors. If you live in a city, and have trouble sleeping; try using this air filter.