Ozone can remove formaldehyde, benzene, ammonia and other harmful substances especially for new house painted. Purifier office,meeting room,bed room,kitchen,toilet air and remove odor,kill bacterial ,virus in hospital ,restaurant,wards and so on.

Method is:for purifier indoor air put the machine on a high place,generally,open 5 minutes for house 10m2, people can stay in house,but for air sterilizer,you need to open more time so make sure no one  in house and waiting 20 minutes enter the house after machine shutdown.

Besides,ozone also can increase oxygen content of the indoor air.