Natural air intake structure: After the ashtray cleaner has been switched on with a button, the smokeless ashtray adopts a natural air intake structure that uses the suction formed by the aerodynamics to dissipate the smoke and can effectively and quickly absorb and filter the smoke effectively. Power supply: the power supply takes over the standard AA battery on the market. This indoor ashtray can be disassembled and replaced at any time and comes without battery. Multifunctional: The intelligent ashtray is not only an ashtray, but can also effectively clean smoke and odours from second hand. Negative ion cleaning: the ashtray cleaner uses a filter screen and negative ion cleaning, and air purification is more thoroughly. Portable and VersatileThe multifunctional ashtray is convenient to carry and can be used for family, business and business trips.