I bought this product to combat bed bugs that had infested not bad my room. I combined its efforts with a chemical (which I used in small quantities, just to infested areas) and a steam sprayer. This powder, spread in strategic locations, killed the last resistant and helped kill the hatched larvae later. It also kills other insects. By cons attention, not wanting to see the return of bedbugs I set dose and when I aspired to clean quite a bit of dust was left suspended in the air and it earned me a good irritation bronchi. If you are careful it does not impact on our health and avoids recourse to chemicals.