Patent ID: 6484722
Filing Date: 2002-11-26
Classification: A41D,A62B

Abstract:
A personal respiratory protection device that comprises:a multi-layered structure that consists essentially of a first cover web, a filtration layer that comprises a web that contains electrically-charged microfibers, and a second cover web, the first and second cover webs being disposed on first and second opposing sides of the filtration layer, respectively, where at least one of the cover webs comprises spunbond fibers; the multi-layered structure being divided into a first panel, a central panel, and a second panel, the central panel being separated from each of the first and second panels by first and second lines of demarcation, and each of the first, second, and central panels being non-pleated; the multi-layered structure being capable of being folded at the respective lines of demarcation so that the device can be folded flat for storage and can be opened to form a cup-shaped air chamber over the nose and mouth of the wearer when in use.