This air purifier uses a built-in UVC light source, which is safe and leak-free. It produces 35mg ozone per hour. It uses a 7-blade silent fan and a three-dimensional air duct to quickly sterilize the indoor air through the built-in ultraviolet rays. The killing rate of influenza viruses and coronaviruses As high as 99%. Parameter: … Continue reading Air purifier ozone ultraviolet negative ion for Covid-19