Electric mosquito repellent liquid is a common mosquito repellent product, and its correct use is very important to protect human health. First of all, choose the appropriate location to place the electric mosquito liquid can improve the mosquito repellent effect. Second, the electric mosquito repellent liquid should be turned on half an hour before going to bed to ensure that it can work effectively at night. In addition, it should be understood that the main pyrethroid components contained in the electric mosquito liquid, although slightly toxic, are generally safe for the human body as long as they are used correctly. At the same time, attention should be paid to control the use of electric mosquito liquid to avoid inhaling too many harmful substances.