Love, Love this item. I have it sitting on the desk in my office and it runs 24/7. Both my dogs spend all day in my office with me and I used to be able to smell dog prevalently when I would walk in. With the Germozap, I don’t smell anything. Also, I have terrible allergies and can sometimes sneeze more than 10 times run a row. My office is now my safe zone, I don’t ever sneeze there. I have bought another to go beside my bed.