If you are a smoker, even a light smoker this is not for you. I am a smoker and I got this to help clean my air.. I have not noticed a difference. In the directions it states that this product should not be around smoke as you will have to clean it EVERY DAY and that is true, the "cleaning light" came on within 24 hours. It is a pain to clean especially with the smoke build up and then you need to lay it out to dry for at least 4 hours. If you are a non smoker you may be more happy with this product then I was. It also says it should not be used around candles or it will need to be cleaned very often.