Using this mosquito headnet is simple. Just put it over your head and adjust the elastic drawcord around your neck with the cord lock for a snug fit. When it comes to maintenance, remember that the Permethrin treatment will wear off over time and with washing. So, try to limit the number of times you wash it. If you need to wash it, use a mild detergent and air - dry it. Also, although the Permethrin used on the net is generally safe for humans, if you have any concerns, it's best to consult your medical practitioner. Keep this headnet in a dry place when not in use to maintain its quality.