Review (5/5): Wish I had ordered 6 of them!!
This product worked far better than I expected it to and my only regret is that I didn't order at least 6 of them! It does have a very slight scent, but once you place it in your air return, you won't notice that. What you will notice within minutes is the lack of odors in your home. It's not a cover up (thankfully as I cannot stand those sprays and other things that mask, or say they mask, odors, while its just a scent to cover them up.), rather removes the odors. I will order this again and recommend it to all.