Highlights Substantially retain TAR, NICOTINE, CO, & other harmful substance in cigarette. Ease symptoms caused by smoking, such as cough, over-phlegm, throat ache etc Smoking tar filter cartridge Enjoy the life caring for health. The circulating cigarette holder for filtration adopts the pneumatic jet principle. The cigarette smoke will run onto the cigarette tube wall at a high speed through two small holes, & the tar will be caused to deposit, cohere & stay, so that the function of high-efficiency tar filtration is realized. The filtration adopts pure physics principle, & there are no chemical filtration matters. After smoking of 10-15 cigarettes, the filter must be cleaned. During the cleaning, please directly pull out the cigarette holder wall tube & cigarette holder in reverse direction & dip the internal filter into warm water. If the air hole is blocked, the steel wire can be used to eliminate the block. When storing the cigarette holder, please clean away the tar in the filter & keep it away from children. Specification Dimension (cm): 7.5 1 1 Shipping Weight (Kg): 0.053 Package Contents 1 Cigarette Holder 1 Spare Mouthpiece 1 Steel Wire 4 Spare Rubber Ring 1