Have had the Air Purifier about a month now. It's nice and does as advertised. EZ manual and EZ to move around. Very quiet on low, not bad on medium and ok on high setting. Puts a "clean" smell into the room where it's used. I am in a small apartment and mostly keep in my bedroom but move it around to different area's in the apartment. The pre foam filter where air is sucked in the back of the unit is just about ready to get a cleaning with my vacuum attachment as recommended. Follow the maintenance instructions to keep it in top working condition. Overall, I'm glad I ordered one and am happy with the purchase.