Lexie, there are safety masks that are worn by construction workers for protection against dust, fumes, chemicals, etc. They can be rented from the same places that rent tools and equipment out on a daily basis. these masks are good for the most hazardous environmental conditions--so, yours should not be a problem at all.
If you want more detailed info. on what model to ask for--check on the OSHA websites.
Just a thought.....
dandylion