These devices are commonly marketed as being beneficial to allergy sufferers and asthmatics, and at reducing or eliminating second-hand tobacco smoke. Or at least, until the indoor air quality index is sufficiently high enough. Noise level is only 46 dB; compared to 50 dB of Levoit Core 300 and 54 dB of bigger Levoit air… Continue reading Levoit LV-H132 Air Purifier Review HEPA Filter Test Results