Oh my goodness I absolutely can’t stress enough how wonderful this air purifier is! It cleans the air, it detects dirty air, pollens, pet dander etc! I really needed this in my home. I have several animals and am constantly cleaning but how can you clean air? This is your answer! I couldn’t be any more happy with a product! It’s easy to use. All you have to do is turn it on and it does the work for you! It’s very quiet also which is a huge plus!