RESPIRATOR NEGATIVE PRESSURE FIT CHECK DEVICES AND METHODS

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...

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Bibliographic Details
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
LanguageEnglish
French
German
Published 29.03.2017
Subjects
DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
FIRE-FIGHTING
HUMAN NECESSITIES
LIFE-SAVING
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Summary: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 position and an open position, and when in a closed position the shut-off valve prevents fluid communication between the one or more inlet ports and the breathable air zone and the shut-off valve returns to an open position in the absence of an applied force.
Bibliography:Application Number: EP20150725164