Since I use DE and also there is a virus you can get by inhaling the dust from cleaning the coop, I thought it would be a good idea to wear a mask. I do not need any further health problems, that especially can be prevented. Right now I'm using a disposable mask, but maybe I should look into using a non-disposable one instead. Anyone else use a mask to clean the coop? They are not the most comfortable due to being so sweaty underneath. Especially in this hot and humid weather. I feel so much better using one knowing it's the sensible thing to do. I've noticed the chickens have a lot of dander, especially after they clean their feathers.