According to the data of Leha Health Network, because the electric mosquito-repellent incense uses PTC heating material, it will not heat up after reaching a certain temperature, that is to say, it is constant temperature, which is not enough to reach the ignition point of the material near the combustion, so even if there is no liquid, the electric mosquito-repellent incense will not spontaneously ignite.

Electric mosquito-repellent incense is a tool to repel mosquitoes. The harm of electric mosquito-repellent incense is the same as that of mosquito-repellent incense: the active ingredients of disc, liquid and electric mosquito-repellent incense are all chemical preparations containing insecticidal ingredients, and the only difference is that their carriers are different.