I don't usually wear one because it's just too hot, and I don't feel like I can breathe that well while wearing it, but I did wear one the first time I dusted my chickens for lice. I've only been wearing gloves while dusting the chickens for lice as well, but I probably should also wear them for cleaning because I have to pick some of the bedding up with my hands, too. I usually just get the cleaning over with and then go take a nice, long bath to get off all the lovely, poopy dust. I also don't use DE in my coops if it makes a difference.