I put them in my car and they do an excellent job of minimizing the smell of smoke. Then I hang them up in my office and around the house because I really like them. They don't completely eliminate the smell, but they do improve the situation significantly. The smell is a little too strong when you first use it, but it becomes bearable after about a week. I just wish the container wasn't so ugly. I put mine in some bowls to hide the ugly container but it's odd that the bowls are scattered around the house.
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