Mish- I know you're not intentionally sprinkling the fuzzies when you use the Carpet Fresh, but I think it would be better if you confined them until after you're done using it. If they're rolling in it, it's clinging to their fur - that's what this stuff does in the carpet - only you're not vaccuming it out of their coats- what could be happening though, is that they are licking Carpet Fresh particles when they clean themselves, and that could be harmful. Ferrets are so sensitive and so small - it doesn't taken much of anything that's not good for them to be harmful. At the very least, they must be breathing some of this stuff in as it's being sprinkled, and ferrets are known to be prone to upper respiratory infections. There are always ferrets up in my house no matter what time of day it is - unless I'm cleaning. Then they are tucked away in their cages until the floors are dry, the furniture is polished, and all mops, buckets of water and all cleaning products are put away. Debbie Riccio WNYFLFA Rochester, NY [Posted in FML issue 1273]