Ergonomic protective air filtration devices and methods for manufacturing the same

摘要

Ergonomic protective air filtration devices and methods for manufacturing the same are disclosed herein. An ergonomic protective air filtration device includes a stack of at least two layers of an air permeable material, the stack forming a body, a periphery, and a back; a plurality of intersecting three-dimensional V-shaped pleats extending from the periphery and into the stack of layers, so the back of the device defines a breathing chamber adapted to cover a mouth and a nose of the wearer; and a retaining means engaging the body of the device to secure the device to a face of the wearer and to create the breathing chamber. The ergonomic protective air filtration device provides protection against contaminated droplets, fluid splashes, solid particulates, pathogenic microorganisms, or aerosoled air pollutions.

主权项

1. An ergonomic protective air filtration device comprising:
a partially laminated arrangement of at least two layers of an air permeable soft fabric material, the laminated arrangement having a periphery, an inner side an outer side, a left side, a right side, and a bottom side; a symmetrical pattern of three-dimensional V-shaped pleats extending from the left, right, and bottom sides of the periphery, wherein the pleats intersect in a symmetrical step-like and angled pattern in a central portion of the device to form a semi-rigid but flexible convex body having a pyramidal shape when viewed from the outer, inner, left, and right sides, and having a triangular contour when viewed from the bottom side, and wherein said symmetrical pattern of three-dimensional V-shaped pleats forms a three-pointed Y-configuration on the outer side.