• This product is researched and developed by professional design team on the basis of domestic environment and life style, which is suitable for all kinds of space. It plays the function of purifying indoor air and effectively removing harmful indoor gases (eg: formaldehyde), second-hand smoke, inhalable particulates(eg: PM2.5), killing bacteria and removing dust, dispelling peculiar smell etc. This product is only applicable for houses or similar environment, which is prohibitted for outdoor use. kssemble the filter/ Assemble the front panel Aligh the filter to the slot, the side with braces outward, then push into the unit slightly. / Insert the bottom buckle to the holes in the front cover, then assemble the front panel into the cover slightly. • The lifetime of the filter differs based on indoor environment, usage times and usage location. • To improve the efficiency, please purchase the filter suggested by Company. • Please make sure the power is cut off before replacing new filter. • Primary anti-microbico filter should be cleaned by soft brush every half month to clear away the large pollutant, like hairs. Filteration system Function _Layer one primary anti-microbico filter Filter large particle or hair Layer two Nano silver antibacterial Kill all kinds of bacteria gel filter Layer three High efficiency HEPA filter Filter PM2.5, source of allergy, powder, bacteria, virus and mycete Layer four Honeycomb activated Eliminate peculiar smell, absord harmful carbon filter 1 gas Efficiently resolve formaldehyde, Layer five Cold catalyst filter benzene, ammonia gas, TVOC,sulfuretted hydrogen or other harmful gas Layer six UV sterilization Efficiently kill all kinds of bateria for disinfection Layer seven Negative ion Eliminate dust, fresh the air, remove indoor static electricity for sterilization