How Long To Wear Surgical Masks & N95 Respirators - Sofeast
How long does an N95 mask last? Manufacturer guidance typically suggests that N95 respirators can be worn for 3-4 hours at a time. How to make sure what the time duration is? At the time of testing in a laboratory, the manufacturer will have suggested the appropriate length of time. It may be written in the detailed lab test report for the mask.