[Protect your air] Three layers of 360-degree protection-A truly efficient HEPA air filter can capture 99.97% of dust, allergens and wildfire smoke particles from all directions. Our True HEPA air filter has more than 155 folds and 3,000 square feet of filter area, which can capture dust, pollen, harmful bacteria and pet dander. [Zero Ozone Certification] Ultraviolet-C (UV-C), as the ultimate defense line, helps to reduce airborne bacteria, such as Staphylococcus, Escherichia coli, Escherichia c