smoldering fumigating mosquito coil for repel or kill insects

coil mosquito spiral mosquitoes insect repellent mosquitorepelling incense fumigating burning smoldering slow smoke vapors emitted air insecticide active substance paste dried pyrethrum powder natural powdered material dallethrin midge repel kill effectively outdoors ventilated room household everyday life comfort wooden surface gray background insects evaporated together stands side view selective focus