... Purifier 2.Pre-filter,electrostatic devices,triple-filter New Home Air Purifier/Air CleanerYitianneng intelligent air purifier is electrostatic ... , triple filter(activated carbon filters, ozone filters, photocatalyst system) and UV lamp.After being clean air disinfection machine outlet ... functions of lung and heart, sleeping, metabolism and immunity system, which is a necessary health guard of people's ...