Mosquito nets should be hung up properly to cover the sleeping area and should be low enough to allow netting to be tucked in under the mattress or mat where the person sleeps. Mosquitos that are trapped inside the net should be killed with insecticide spray or by hand. Mosquito nets provide much better protection if they are treated with a special insecticide. This insecticide is not harmful to people if used correctly, but it kills mosquitos and keeps them away from the house. Treated nets also kill bed bugs and other insects.
Insecticides are useful, but they are dangerous if used incorrectly.
You must receive special training before you can advise people on how to treat nets with insecticides. Effective screening is possible only in houses that are well constructed and maintained. Frequent inspection is necessary to detect damage to the screens and to make early repairs. Another way of keeping out mosquitos is to use curtains made from netting or similar materials. These curtains must be treated regularly with a special insecticide and they must be hung up in such a way that they cover all openings to the house.