This is what I have for myself and family for masks (respirators)
https://www.3mcanada.ca/3M/en_CA/com...3732625&rt=rud
along with these filters
https://www.3m.com/3M/en_US/company-...4776289&rt=rud
99.97% filtration of particles 0.3 microns and greater. Higher filtration than N95 (95% filtration), and oil resistant, while N designation is not.