How do hotels drive away flies?

The spray water is contaminated with drugs. In addition to using fly-killing adhesive tape, it can also be used to kill mosquitoes and flies. Environmental protection, no smoke pollution and no harm to people. The color light of authentic mosquito killer is attracted to the vicinity of the lamp by the compound eyes of mosquitoes and some insects, and then electrocuted by the power grid. The mosquito and fly killing lamp can be used for general lighting at night, killing two birds with one stone.