... CNAS BENEFITS:The purpose of this product is to reduce tar, nicotine and other harmful substances in the cigarette.ADVANTAGES:1 ... .Around 80% of Tar and Nicotine removal.2.Practical, simply use it and ... contains no harmful chemical stuffs.Unique patented technic,substantially retain Tar,Nicotin etc. harmfull substance of cigarette.Making smoke clean&cool ...