This unit utilizes UV-A light to attract mosquito and insects, drawing them into the grill, to be killed by the
inner grid. Economical and efficient, it keeps you permanently free from mosquitoes, flies and other bugs. No chemicals, no smell, no sprays, no mess, pollution free and hrmless to humans and pets. It is ideal for indoor applications such as in houses, factories, food outlets, cold rooms, hospitals and other places. Indoor use only, not for use in barns, stables or similar places.