360° Air Circulation Filtration - This smart ashtray air purifier features a surround intake design that actively captures secondhand smoke and harmful airborne particles. The air passes through a multi-layer filter system and releases purified fresh air from the bottom, creating a cleaner breathing environment in your living room or office. Ideal for secondhand smoke removal and indoor air purification without messy drafts. Powerful Low-Noise Turbine Fan - Equipped with a built-in turbine fan, this device delivers strong suction power for efficient smoke purification while maintaining whisper-quiet operation. You can run it during work or sleep without disturbance. Perfect for bedroom air cleaner needs and home office smoke eliminator applications where silence matters. Efficient Secondhand Smoke Purification - Multi-directional air intake combined with layered filtration technology significantly reduces secondhand smoke particles, protecting your family and colleagues from harmful tobacco residues. Works great as a smoke absorber for indoor use and cigarette smoke filter for small spaces like study rooms or gaming areas. One-Touch Operation with Timer - Simple button control allows you to turn on the purification cycle with a single press. The unit automatically shuts down after approximately 5.2 minutes – no need to watch the clock. This auto-off ashtray feature saves battery life and ensures safe use, especially if you have kids or pets at home. Detachable & Easy Maintenance - The removable structure lets you quickly clean the ash collector and replace the solid fragrance tablet. No tools required. Regular maintenance keeps the mini air purifier for smoke performing like new. The fragrance tablet adds a subtle fresh scent, turning your ashtray into a home aroma device as well.