I've owned mine for about 5 years, and I love it. I was surprised to see so many negative comments from other reviewers. If I may add my two cents to the discussion:* This machine works great as an air purifier for small/medium bedrooms. It is designed to remove dust and other allergens from the air, and it does so quite well in my opinion. It's not meant to clean the air in the whole house. It's not meant to remove strong odors like stinky p..