In summer, besides heat, the most annoying thing is mosquitoes. In addition to the most traditional mosquito repellent incense, mosquito killing tablets and mosquito repellent, mosquito repellent bracelet, mosquito repellent lamp, mosquito killing pads and other new products have also appeared in the market. Which is the best one in the end? What kind of "effective component" is safe?

　　Most products mark "micro poison"

　　Most famous brands of mosquito repellent incense, mosquito killer and mosquito repellent are marked with pesticide registration card number. Most of the mosquito control products will pass certain efficacy and toxicological experiments before they are put into production to ensure that there is no harm to the human body and the environment to be listed.

　　People in the industry say, in addition to the production license number and product standard, the mosquito repellent product must also have the pesticide registration certificate issued by the agricultural department and the pesticide production license, and can be sold after the external packaging is shown.

　　Most brands of mosquito repellent products will be labeled with "micro poison" and so on. However, some brands are not labeled, but there are some ways to introduce first aid, which is illegal.

　　How is it safe to use?

　　The "total effective component" is usually marked on the outer packaging of the mosquito killing mosquito product, which is mostly "pyrethrin", "chlorofluoroether" and "tetrafluorothrin"... Almost all of them are chrysanthemum esters. According to insiders, chrysanthemum esters are relatively safe for human body, but they are harmful to human body for a long time in confined space.

　　All kinds of mosquito repellent incense sold at present contain chrysanthemum esters, and different brands have different contents. 0.08% of them are high and 0.012% of them are low. On the outer packing of mosquito repellent incense, there are notices: "do not let children play, pregnant women should use carefully; do not use the closed doors and windows, pay attention to proper ventilation" and so on.

　　The toxicity of mosquito repellent products is related to the size of the space used, but few products indicate the use of space. Some big brands will use space to mark their products "room size", usually from 22 square meters to 30 square meters.

　　The best physical mosquito repellent in the infant roomAlmost all brands of mosquito repellent products are specifically targeted for children or babies, but in these products, pyrethroids are still the main ingredients, only lower than the related content of the common mosquito control products of the brand.

　　An agro pharmacy teacher at Southwestern University said that the long-term use of pyrethroid compounds in closed space could affect the weak respiratory system of children. He suggested that children's rooms be best used in physical ways to kill mosquitoes, such as mosquito repellent mosquito nets. At the same time, he also said that the best use of mosquito control products in the air conditioning room, because the air conditioning room is not enough air circulation, easy to increase the concentration of pyrethroid products, the long-term use of the human body has a certain amount of harm.