I’m new to this chicken raising but I have been mixing it with a mixture of clean top soil (from the farm store) and clean sand (from the farm store). I put my “concoction” in a hog feeder pan (from the farm store). The kind I use isn’t the really fine powdery stuff that I use on my garden, it’s courser and not very dusty at all. I set the pan in the corner of their coop and they use it at their leisure. I haven’t experienced any problems. I will say that they usually prefer to dig their own dust bath outside and sqwable over who gets to use it. I only notice them using the one in the coop for the 1st day or two. Probably because they are just curious about it and don’t like the way I piled the “concoction” in the pan