1. Built-in 8 million negative ions 2. Stainless steel ashtray body 3. High-quality blower 4. 98% filtration efficiency HEPA filter 5. Built-in rechargeable lithium battery, 4000mAh, battery life: 20 hours in low-speed mode, 5 hours in high-speed mode. 6. Small size, easy to carry, can be used for household, commercial, and business trips. 7. Ozone function expansion is reserved, and ozone disinfection, deodorization and sterilization functions can be added.
