The Craftsman wet/dry vac filters really hold a lot of debris.  In fact, they hold so much debris, it is easy for them to get clogged.  I was surprised at how much of the bigger chunks get stuck in the filter folds instead of falling into the vacuum tub itself.  I've tried the blue and white filters in the vac when sucking up dust and wood chips from my miter and table saws.  This debris was a mixture of chunks as well as fine particles.

Finer dust gets trapped as well, although I didn't notice a difference between the blue and white filters (no way to measure it actually).  Drywall dust or...