Is the smoke from mosquito coils harmful to humans?

The smoke from mosquito-repellent incense is harmful to humans and should not be used for prolonged periods to avoid adverse health effects.

Mosquito-repellent incense is a type of insect repellent that works by releasing smoke when the active ingredients are burned, driving away or killing mosquitoes. It mainly comes in two forms: stick incense and coil incense. Its primary chemical components include organophosphates, carbamates, and pyrethroids. Generally, the smoke produced by mosquito incense is harmful to humans and should not be used over long periods. When burned, mosquito incense releases ultrafine particles (soot), polycyclic aromatic hydrocarbons, carbonyl compounds, benzene, and other harmful substances. Prolonged exposure may lead to asthma, coughing, eye irritation, neurasthenia, or even poisoning.

It is important to note that if using mosquito-repellent incense, one should avoid touching their eyes after handling it, as this may cause eye irritation and negatively affect eye health.