Review on Next-Level Air Purification: Germ Guardian WiFi Bluetooth Smart Voice Control Air Purifier with UV Light Sanitizer and True HEPA Filters for Allergies, Mold, Odors, Smoke, Pet Dander - 22inch 5-in-1 CDAP4500BCA by Agustin Bush

Since exactly the air is pushed through. I was pleasantly surprised by the air exchange and how clean the air is now. I wouldn't have believed it if I hadn't seen it. The air smells cleaner, and when the sun is shining there are far fewer particulate matter floating around. When the device is set to 4 it's almost inaudible and it's a nice white noise to put you to sleep. UV light is very good at killing airborne pathogens, according to test charts introduced at various times when mold was a problem. Does not overheat even with 24-hour continuous operation. I only take it off when I leave the house like many other appliances like coffee maker etc. Will buy again.