Everything about Mosquito Net totally explained
A
mosquito net offers
protection against
mosquitos,
flies, and other
insects, and thus against diseases such as
malaria. Its fine, see-through, mesh construction stops many insects from biting and disturbing the person using the net. The mesh is fine enough to exclude these insects, but it doesn't completely impede the flow of air.
Mosquito nets are often used where malaria or other insect-borne diseases are common, especially as a tent-like covering over a bed. For effectiveness, it's important that the netting not have holes or gaps large enough to allow insects to enter. Because insects can bite through the net, the net must not rest directly on the skin.
Mosquito nets treated with insecticides -- known as insecticide treated nets (ITNs) -- were developed in the 1980s for malaria prevention. These nets, impregnated with a
pyrethroid insecticide like
deltamethrin or
permethrin, kill and repel mosquitoes. Unfortunately, standard ITNs must be replaced or re-treated with insecticide after six washes and, therefore, are not seen as a convenient, effective long-term solution to the malaria problem.
As a result, the mosquito netting and pesticide industries teamed up to develop so-called long-lasting insecticidal mosquito nets (LLINs), which also use pyrethroid insecticides, but are also treated with a chemical binder that allows the nets to be washed at least 20 times, allowing use for three or more years.
Alternatives
Mosquito nets do reduce air flow to an extent and sleeping under a net is hotter than sleeping without one, which can be uncomfortable in tropical areas without
air-conditioning.
One alternative for reducing mosquito bites is to use a
fan to increase air flow, as mosquitoes prefer still air; however this is far less effective and less preferred to a mosquito net, in areas with
insect-borne diseases.
Another alternative is to apply an
insect repellent to the skin; this also may be less effective (reducing rather than eliminating bites) and may pose health risks with long-term use.
Mosquito control measures are often appropriate and effective, but may be impractical to undertake effectively on an individual or small-scale basis.
Further Information
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