Agreed. P100 respirators will have considerably more surface area and are more suited to actual labor over time than N95 masks.If you end up going in there to do any work, that's all good advice. I'd go with a half-face respirator (like 3M 6000 series) w/P100 cartridges due to the amount of particulates (dust, mold spores, etc.) you'll likely encounter. I think I picked mine up at HD or similar store, so they're not hard to find. Mold spores can be harmful, and one can catch hantavirus from rodent waste.