Review on PuriDoc Air Purifier for Home: H13 True HEPA Filter, Silent Operation, 99.97% Pet Pollen Dander Smoke Odor Removal - Ozone Free, Bedroom Living Room White (1 Pack) by Anthony Juat

Pros It has 3 noise/fan levels and the noise is loud enough to be white noise when you're sleeping but quiet enough to be in the background during the day - it was hardly perceptible. It works well as a cleaner for dust, pollen etc. It was really helpful during peak allergy season. Cons: It takes significantly longer to remove odors from a room (e.g. after someone has mowed the grass outside) than my little bedside table cleaner. does. I also hate the loud beep that goes on when plugged in and then every time you change the setting from low, medium or high. White noise is the ideal level for my light sleeper, but when I turn it on or change the setting, the beep is enough to wake him up.