So I should wear my 3M 7500 mask with its dual P100 filters (hot pink of course) whenever I go to the grocery store? That ought to cause some envy among the surgical mask wearing crowd!
Yes. But be aware you need to be really careful when taking it on and off,and also need to keep it sanitized.You can find a guide here....https://www.ibtinc.com/how-to-clean-reusable-3m-respirators/
In short 1/3 a cup of bleach per gallon,followed by a rinse in warm clean water. Filters can not be treated,and need to be removed prior to soaking. If you do not have removable filters(some are disposable types)you just need to wipe it down with the bleach solution and rinse it. I would cover the filters with plastic wrap and wear gloves and another mask while doing either type.