This is a very powerful spray which I used in the wardrobes and on the carpet under beds and in the airing cupboard and in usually undisturbed places where moths could breed. It is best to leave the area immediately after spraying as the fumes, when breathed in, did make us cough. Prior to spraying, several moths were apparent, but having used the spray just the once, we have not seen a single one. I would buy this spray again and recommend it to anyone with a moth problem. Well pleased.