Half an hour after Fei Xiang was lit, all the flies fell to the ground and died. What is the principle of flying incense?

Most of the effective components in mosquito repellent products such as mosquito coils are pyrethroid broad-spectrum insecticides. Pyrethroids have a strong contact killing effect on insects, and some varieties have both stomach toxicity and nerve agent. Its target is the sodium channel of insect nerve, which disturbs the normal physiology of insect nerve and makes it excited, convulsed, paralyzed and even dead.

Whether using disc mosquito-repellent incense or electric mosquito-repellent incense, keep indoor ventilation. Although the pesticide content in the product is small, the pesticide concentration is not low in a certain space after a large amount of combustion.

Extended data:

As early as 2004, mosquito-repellent incense was included in the scope of pesticide management. The toxicity of pesticides in China is divided into five levels: highly toxic, highly toxic, toxic, low toxic and slightly toxic. The state stipulates that the toxicity grade of mosquito-repellent incense is low or slightly toxic.

If excessive mosquito-repellent incense is placed in a closed room, it may cause poisoning symptoms such as dizziness, headache, nausea, blurred vision and difficulty breathing. It is suggested to put a plate of mosquito-repellent incense in the room of 15 square meter. For the sake of safety, it is best not to put the lit mosquito-repellent incense near the head to reduce the inhalation of smoke. Evening and before dark are good times to use mosquito-repellent incense. Close the doors and windows when using, and open the windows for ventilation after people and pets leave.

People's Network-Is mosquito-repellent incense harmful to people?