1. Built-in 28 million negative ions 2. Built-in ozone generator module, ozone concentration: 2.02mg/m3 3. High quality 5015 blower 4. Formaldehyde removal rate was 99.2% 5. Killing rate of white staphylococcus: 99.9% 6. Small size and easy to carry, can be used at home or business hotel 7. Equipped with 2000mAh high-capacity lithium battery: 2000mAh battery: single mode: 6 times; cycle mode: 4.5h
