Exhalation Valve And Respirator Including Same

Various embodiments of an exhalation valve and a filtering face mask that includes such exhalation valve are disclosed. The exhalation valve can include a valve seat and a valve flap disposed over a seal surface and an orifice of the valve seat. The valve flap is adapted to be sealed against the sea...

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Bibliographische Detailangaben
Hauptverfasser:	Eitzman, Philip D, Xue, Thomas J
Format:	Patent
Sprache:	eng
Schlagworte:	ACCESSORIES ACTUATING-FLOATS BLASTING COCKS DEVICES FOR VENTING OR AERATING DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING ENGINEERING ELEMENTS AND UNITS FIRE-FIGHTING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HUMAN NECESSITIES LIFE-SAVING LIGHTING MECHANICAL ENGINEERING OUTERWEAR PROTECTIVE GARMENTS TAPS THERMAL INSULATION IN GENERAL VALVES WEAPONS WEARING APPAREL
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