I like this air filter very much. It came in nice retail packaging that was shrink wrapped. It has two speeds. A lot of air circulates at high revs and the noise level remains acceptable. On low it's very quiet, like there's a desktop computer in the room. It has a nice blue light stripe down the middle when it's running, which is also visible from above through the vent. Not too bright, just a nice dark blue glow. My phone's camera doesn't really capture color. The large power button at the top and the speed indicator also light up. No tools are required to change the filter, there is a huge hand screw on the bottom, just grab it and twist it a few times to open the unit. The filtered air exits through the top loop vent, which directs it 360 degrees. It's a nice simple design that looks great in my room and helps with allergies!
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