Valved vs Unvalved N95 Respirators: Which Do You Need? (2026)
An unvalved N95 filters the air you breathe in and out, so it protects the wearer and contains the wearer’s exhaled breath. That makes it the required choice for source control and sterile areas, and it’s usually cheaper. Common examples include the 3M 8210, Moldex 2200N95, Gerson 1730, and SAS…