RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS

• Main Authors: ABEL, Nathan A, COSGROVE, Dylan T, MITTELSTADT, William A, DWYER, Gary E, LAGESON, Kent E, LI, Chaodi, INSLEY, Thomas I, SVENDSEN, Michael J, STEIN, David R, RAINES, Carl W. III, BLOMBERG, David M, COWELL, Michael J
• Format: Patent
• Language: English; French; German
• Published: 29.03.2017
• Subjects: DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING; FIRE-FIGHTING; HUMAN NECESSITIES; LIFE-SAVING

A respiratory mask body defining a breathable air zone for a wearer and having a shut-off valve is provided. In an exemplary embodiment, the mask body includes one or more inlet ports configured to receive one or more breathing air source components. The shut-off valve is operable between a closed p...