Review on 🌬️ Medify MA-22 Air Purifier with H13 True HEPA Filter - 330 sq ft Coverage for Smoke, Smokers, Dust, Odors, Pet Dander - Quiet 99.9% Removal Down to 0.1 Microns - Black, 1-Pack by Julie Spalding

INSTALLATION The quick start guide only describes the button functions and how to change the filter. I opened the block and found the filter was wrapped in plastic. Be sure to unpack and reinstall the entire filter. I placed the unit 20 inches away from furniture according to the manual. Since it's round, you need to ensure clearance in all directions. IF IN USE It's rated to cover "330 sq. ft. Feet" but the rating is based on a 30 minute run time. 660 sq. ft. in an hour, so it should work well in a large room. The main complaint I've read about Mediify cleaners is that they're louder than some brands. I love the hum of the air purifier in my bedroom, it helps me sleep so volume is not a problem for me. Medify says this model has 53 decibels at high volume, which is louder but not as loud. Definitely check out other brands if you want the quietest cleaner. I don't need to test the air to make sure the device is effective, there are enough professional reviews to confirm that these things (and Mediify in particular) are effective. one filter lasts about 8 months per day Replacement filters sell for $40 (according to website)