Respirator mask and filters

What level filter do you guys use when working in attics and crawl spaces. Is raccoon/squirrel/skunk waste considered "low toxicity"?

Raccoon waste is nothing to sneeze at. Here's a link to a PDF from the CDC about raccoon latrine cleanup: http://www.cdc.gov/parasites/baylisascaris/resources/raccoonlatrines.pdf
Skunk and squirrel waste can also be a source of disease.

We use these..

Half face for me,,,,, the full face always fog....

Filter is p100

I have a brand besides 3m that has larger intake holes but can not think of the name

always use the best filter possible smallest holes are the best

holes are in mask and intake on filter,, AKA larger air intake then 3m,, p-100 are the best filtration yo can get for particular matter........