The main components of mosquito-repellent incense

Mosquito-repellent incense is a common mosquito repellent product whose main ingredients include dextromethrin and other prescribed pyrethroid insecticides. These ingredients are low-toxic insecticides allowed by the state, ensuring the effectiveness of mosquito repellent while reducing the potential harm to the human body. In addition to the chemicals widely used in modern mosquito coils, different formulations have historically been used to make mosquito coils. For example, in the Jiangnan region of the Song and Qing dynasties, mosquito-repellent incense containing rosin powder, mugwort powder, tobacco leaf powder, small amounts of arsenic and sulfur were used, and these traditional formulations proved to be very effective at repelling mosquitoes at the time.

How do mosquitoes transmit viruses?

When mosquitoes bite a person with a virus in their blood, they also inhale the patient's pathogen into their body. When they bite a healthy person again, they inject the pathogen carrying the virus into the healthy person, thereby achieving the result of infection.

How far does a mosquito fly?

There are two types of mosquito appearances, one is the common common mosquito, and the other is the "flower mosquito". Ordinary mosquitoes usually fly 10-70 meters, but not more than 100 meters; The "Flower Mosquito" can fly 5000-7000 meters, up to 10000 meters, and has a fast speed. It can perform difficult maneuvers such as rolling back and forth, diving, sharp turns, sudden acceleration or deceleration, and bite people fiercely. The advanced M7 fighter jet in the United States was manufactured based on the biological principle of this "flower mosquito".

How long does it take for insecticides to be sprayed before entering the room

After spraying the insecticide, the time it takes to enter the room mainly depends on the amount of spraying and the indoor temperature. In general, it is recommended to enter the room after 10 to 30 minutes, and the specific time depends on the spraying amount and indoor temperature.