To maximize protection against COVID, use a 3M N95 - Jan 13, 2022
3M 7500 Series Half Mask Respirator - alaskasafety.com
Amazon.com: 3M Aura Particulate Respirator 9205+ N95, Lightweight, Three Panel Designed Respirator Helps Provide Comfortable And Convenient Respiratory Protection, 10-Pack : Tools & Home Improvement
3M 7503 Large Silicone Ultimate Half Mask 7500 Series Reusable Respirator With Cool Flow Exhalation Valve, 4 Point Harness And Bayonet Connection, English, 15.34 fl. oz., Plastic, 5.8" x 10" x 7":