I’m sticking with standard N95 masks for ease of carry against particulates. The masks I have seal well enough for nuisance particulates (ie., you can breathe, but it’s not pleasant).

In situations where the air makes breathing more than a nuisance issue, a full-face respirator is available at home. Respirators have filter cartridges for particulates (N95), organic vapors, acid gas et al. My better half has a 3M full-face respirator which uses the same cartridges as my half-face respirator. I’m thinking about replacing my Sundström respirator with a 3M model simply to standardize filter cartridges. Keep the Sundström as a spare/back-up/loaner.