If you wear an N95 with an exhalation valve, you will be protected from others who may have COVID-19. If you have COVID-19, an N95 will protect others from you; however, an N95 with a valve may not protect others as well as an N95 without a valve. To make the 3M Model 8511 as protective as an N95 without a valve, 3M Multi-Use Duct Tape can be used to cover the valve in accordance with the manufacturer’s instructionspdf iconexternal icon.
