I keep this air filter near where my dog sleeps in my bedroom each night. I feel it helps control the dust in the room, and I’m glad to know the air is cleaner (we have a lot of allergens where I live). I rarely know it’s in, and the feature that turns the fan off when clean air is detected means I don’t have to worry about turning it off and on all the time. Lightweight and co tells are straight forward. I recommend.