Mosquito Coils – What are the risks?

Mosquito Coils – What are the risks?

Mosquito Coils were first developed by Japanese business man, Elichiro Ueyama in 1890. At that time in Japan people were mixing pyrethrum powder (derived from dried Chrysanthemum flowers for its insecticidal properties) with sawdust and burnt in a brazier to keep mosquitoes away. Ueyama and his wife refined his
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