Mask for exercise in low air quality

Live in Seattle and we’ve got horrible air quality at the moment due to fires. Training inside with a HEPA filter running, but as this seems to be a recurring pattern, I wanted to research respiratory face masks (N95, N100, something like that) for exercising outside on poor air quality days.

I used a disposable, one way vented N95 mask the other day for an outside ride and it was quite tolerable to wear, so looking for a more permanent solution with replaceable filters for marginal air quality days.

Any ideas?

2 posts were merged into an existing topic: Face Mask For Daily Use and Riding