Take a damp white paper towel and wipe her off. Look at the specks on the paper towel - do they move?

Also did you thoroughly clean and disinfect the used enclosure? I wash it, let it dry, hit it with ammonia, let it sit for 24 hours outside, rinse, hit with chlorine bleach, let sit for 24 hours, rinse several more times, allow to dry for several days, and then use it.

DO NOT MIX AMMONIA AND CHLORINE BLEACH. Rinse well between the two products.