describe: Multifunctional air purification ashtray negative ion purification practical automatic purifier ashtray home office portable gadget feature: 1. Smokeless Ashtray: A smart ashtray is more than just an ashtray: it absorbs cigarette smoke and eliminates odors. It helps remove second-hand smoke and pollution particles from the air, creating clean and pure air for your home. 2. Battery: The power supply uses AA batteries commonly available on the market, which can be removed and replaced at any time. Two AA batteries will last about 40 times, with an operating time of 5.2 minutes per battery (not included). 3. Filter: The ashtray of the air purifier is equipped with a negative ion purification filter, which absorbs smoke and odors, filters dust in the air, and then releases negative ions and air. 4. Special design: The ashtray tray is specially designed with four small grooves for fixing cigarette butts. Easy to carry, can be used at home, business, and business trips. Product color: green, gray, white Product material: plastic Power supply: 2 AA batteries (not included) Package contents: 1 piece ashtray