Anti Mosquito Coil a.k.a. Obat Nyamuk is made from residue of wood for furniture, coconut shell, waste of tapioca. This raw material is powdering by using milling machine.
Powder quality must pass through sieve with mesh 80 so that surface of coil is good.
Powder then mix with other chemical to get the best formula which fit to requirement of consumer.
The green color comes from coloring.
Anti mosquito coil also use anti fungi as sodium benzoate, potassium sorbate, potassium nitrate.
The most important chemical on coil is Active Ingredient (AI). Efficacy of coil really depends on the choice of active material.
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