Hello I purchased red earth DE from Meyer hatchery and since I have used it my barn stinks (it never stunk before this) and the Dust is horrable. I am very concerned about there health so I will be cleaning the coop this weekend. Right now I have to take my big 42 inch box fan out there and use my leaf blower to get all the dust off every thing. So i bought a diffrent type of DE I got the food grade stuff from the local feed store. My coop is 64 sq ft how much should I put on when I clean it. Thanks so much my BYCers.