My wife requested that we purchase this air filter to reduce allergens and dust in our (partially-built) home's air.I was skeptical about the unit due to the cost and several reviews (at various vendors) citing noise and poor fan bearing performance; appealing to me was the size, shape, and ability to wall-mount it.So, with a little goading from her, we decided to accept the risk and try it out.It is an impressive little unit!We run it on setting 2, which moves quite a bit of air in near-silence, when we are home.Settings 3 and 4 are fairly loud, but I think that is unavoidable given the massive amount of airflow these settings generate versus the size of the unit.The unit is now in constant use (again, almost exclusively at setting 2 with the ionizer active) for over three weeks without any change in performance, so I expect we will not have any problems with it in the short run.The room in which it is located is 650 sq ft.Dust reduction is substantial, but I will wait longer before determining just how well it works in that regard.
ADDENDUM AS OF 6/24/2010:
Six months have passed and the unit continues to work flawlessly.Dust accumulation in the house is reduced by half, at least.I have to clean the pre-filter about once a month, but it separates from the HEPA portion easily and can be hand washed or cleaned with compressed air.I suspect I was over-estimating the quietness of setting 2, but I still think it is fairly quiet (not much louder than my computer fans).My wife loves silence and will often turn it off if she decides to take a nap on the couch that is located nearby.
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Product Description:
Talk about a powerful air purifier in a small package, the Alen A350 air purifier has the power to remove 98% of mold, pollen and pet dander in rooms up to 800 square feet! The A350 air purifier, Alen's best sell selling air purifier, cleans the air 2 ways, HEPA filtration and an ozone safe ionizer that charges dust, pollen and other airborne particles clearing them from the "Breathing Zone"The new Silver HEPA filter can help you avoid the flu by reducing airborne viruses by up to 50% all the while eliminating 99% of allergens AND 98% of bacteria.The Alen A350 air purifier is slim enough to fit behind a couch or chair and can easily be hung on the wall to save space. The 4 speed fan lets you decide what and how much sound you want to listen to. The lower 2 speeds are perfect for night time. The simple digital intuitive touch button controls make the Alen A350 easy to use and the built in filter change indicator always let's you know when it's time to change the filter in your A350 air purifier. Lifetime Warranty
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