Breathable respirator mask with multiple layered filters

US11235181B2 · kind B2 · utility

Assignee

• The Government of the United States of America, as represented by the Secretary of Homeland Security · US

Inventors

• Michael Daeffler · Washington, US
• Michael Plumley · Birmingham, US
• Ronald Adrezin · East Lyme, US

Key dates

• Filing date: Nov 12, 2020
• Grant date: Feb 1, 2022
• Expiry date: Nov 12, 2040

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B33Y80/00
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

In an example, a respirator includes a respirator body having a distal portion and a proximal portion, the distal portion including a filter housing wall and an open distal end. The proximal portion includes a facial interface which is compliant and deformable from an undeformed state to a deformed state to conform to a facial contour of an individual. One or more filter frames are inserted into the distal portion and supported by the filter housing wall to separate filter media on opposite sides of at least one of the one or more filter frames. A filter cover is releasably attached to the open distal end to enclose the one or more filter frames and filter media, forming a filter housing. The one or more filter frames are removable from the distal portion and replaced into the distal portion to allow replacement of the filter media.