I have use this mostly everyday. Me and My Son have bad allergy like if my son sneeze so much you can see the red blood shot on his eyes from too much sneezing. I started the Shark air purifier in the living room it I'm surprise that seriously it cleans the air or purified it, my son just barely sneeze. This air purifier by shark is in compact size and it wotk fast by purification the room. We loved it and will continue using it. Its very sturdy and durable.