Powerful Suction: 360 degree three-dimensional suction design, fast and efficient smoke absorption. The bottom of the ashtray has a ring-shaped air vent to bring you aromatic air. High-quality flame-retardant materials: Cigarette purifier ashtrays inner lining using high temperature resistant flame retardant materials, eliminating security risks, extending product life, more durable. Multi-functional ashtray: Ashtray has four small recesses can be placed in the cigarette. It may also contain aromatherapy pills. The multifunctional ashtray can absorb smoke and also diffuse fragrance to purify the air. Easy to clean: The ashtray filter has a split design for easy cleaning of ash on the liner, and the filter sponge that quickly absorbs tar can be cleaned and replaced. Easy power supply: The ashtray requires 2 AA batteries, which can work about 40 times, without needing to be charged. Perfect for use anywhere including bedroom, office, restaurant, hotel (batteries not included).