National Technology & Engineering Solutions of Sandia, LLC

Mayo Foundation for Medical Education and Research

Lorenzo Jiron

Eric A Shaner

Thomas John Rogers

Todd Andrew Barrick

Bradley C Salzbrenner

Edward G Winrow

Zachary Medaris Wilson

Devyani Lal

Mark B Wehde

Katherine Anne Barrick

John M Angeli

Michael Alexis Omana

Dora K Wiemann

Victor H Chavez

A reusable, protective face mask has two detachable filter trays that attach on each side of the mask, a soft elastomeric face seal, and straps to go around the user's head. Exhalations and inhalations can pass through the same filter material. The filter trays can accept arbitrary filter media. A forward-facing port can be used to increase speech intelligibility by transmitting sound through a diaphragm without a prohibitive amount of distortion. Manufacture of the mask is facilitated because the mask body and the other mask components can be produced by injection molding. Decontamination and sterilization are facilitated because the mask can be fully disassembled.

Reusable filtering face mask

A test fixture facilitates non-destructive testing of a protective mask. The test fixture includes a mock facial structure, a clamping form that makes a seal around at least part of the facial structure, and can employ the retaining straps of the protective mask to a make a seal around at least part of the facial structure. In use, the protective mask is tested in situ on the facial structure. In some examples, the clamping form has a negative contour of the mock facial structure or of the outer surface of a protective mask that is to be tested. The testing can include repetitive testing of the fit, structural components (e.g., ultrasonic welds and straps), and the degradation of materials as a function of donning/doffing or environmental factors (e.g., temperature and humidity).

Respirator test system

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Sandia Park, NM, United States of America

Lorenzo Jiron