I would be interested to hear how folks safely & effectively dust their actual chickens with DE. I have heard warnings from other people about inhaling it. I try not to breathe it when I'm mixing it in the feed and when sprinkling it on the ground, and if ever I do it makes my nose & throat burn. When I dust my birds with Sevin there's always a good amount of flapping & thrashing involved, creating clouds of dust in the air. I think it's a good word of caution, especially for those who have never dusted their chickens before, to be extra extra careful if they're using DE.