Effective Sterilization: The air sterilization machine sterilizes up to 99.99%. Kill bacteria and viruses, remove formaldehyde, remove odors, purify the air, etc. The high-pressure filter efficiency filters 99.97% of dust particles fines, pollen, flower dust, dust mites and airborne contamination as small. 360° air intake and exhaust provides healthier, cleaner air at all times. Ozone disinfection: active oxygen output of 100mg/h, as a strong oxidant, ozone can directly invade bacteria and viruses to decompose, instantly destroy organelles and DNA / RNA, and lead to the death of bacteria. Oxygen atoms are generated during decomposition, which is harmless to human body. Negative Ions: Our air purifier generates negative ions, provides you with fresh and quality air, moreover, negative ions can eliminate viruses in the air, ensuring your health. 4 Intelligent Mode and Quiet Sleep: 4 possible settings give you various options, and you can adjust the purification performance according to