Electric mosquito coil working principle analysis

Mosquito-repellent devices are divided into two types: electric heating device and electric heating device. They use the constant temperature of the heating element to slowly release the drug and evaporate the gas to kill mosquitoes.

Advantages: This type of anti-mosquito product has no open flame, is safe and clean, and has good use effect. In addition, the liquid mosquito coils only need to be switched on and off every day, so they do not have to be added or replaced. It is easy to use.

Disadvantages: If you choose a mosquito-repellent incense tablet, the odor is too strong for people with allergies. Liquid mosquito coils are easy to leak. If the quality of electric mosquito coils and electric mosquito repellent potions is not high enough, it can easily endanger human health.

Suggestion: When consumers purchase electric mosquito coils, they must read the instructions, choose low-toxicity and non-irritating products, and choose a more reliable brand. Some experts remind consumers that families with elderly people, pregnant women, and children are advised not to use electric mosquito-repellent incense when selecting mosquito-killing products.

The principle of electric mosquito coils is to inhale the insecticide (pyresterrin) into the paper and use heat to evaporate the insecticide. The general efficacy can be maintained for 6-8 hours. The disadvantage is that it has good efficacy immediately after use, and may have an "excessive amount". However, after 4-5 hours, the insecticide has evaporated and the efficacy has deteriorated, and the anti-mosquito effect has weakened.

Using the principle of capillary tube, the liquid electric mosquito repellent that continuously releases insecticides by heating can exactly compensate for the disadvantages of electric mosquito coils. Liquid mosquito coils can be used continuously for long periods of time, about 60 days, and can even be released regularly.

However, the current number of effective anti-mosquito days claimed by various manufacturers is lacking in empirical evidence.

In addition, according to a report made by the Institute of Health, there are many unknown harmful compounds except for the release of Alenine, Toluene and other chemical substances. If used in a closed room, serious allergies may occur, such as sore throat, nasal congestion, and headaches. Therefore, when using electric mosquito coils, it is recommended that air circulation be maintained.

Actually, the principle of electrothermal mosquito-repellent incense coils and traditional coil mosquito-repellent incense coils is the same. It is the same raw material. The active ingredients of disk-type, liquid, electrothermal mosquito-repellent incense coils are chemical preparations with insecticidal components. The only difference is that their carriers are different. .

Therefore, the argument that "smoke-free mosquito-repellent incense is less harmful than smoke-mosquito-repellent incense and electric mosquito-repellent incense is less harmful than disk-type mosquito-repellent incense" is unscientific. However, some counterfeit and low-quality mosquito coils contain 666 powder, realgar powder, etc., which can cause chronic poisoning.