公开(公告)号：US20240269494A1

公开(公告)日：2024-08-15

申请号：US18681792

申请日：2022-08-15

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Nicholas K. Lee ,  Liyun Ren ,  Tanya L. Beckwith ,  Gina M. Daveloose ,  Jeffrey G. Linert ,  Jacob T. Lusson ,  John D. Stelter ,  Jacob J. Thelen

IPC: A62B23/02 ,  B01D39/16

CPC classification number: A62B23/02 ,  B01D39/163 ,  B01D2239/0435 ,  B01D2239/0627 ,  B01D2239/065

Abstract: Provided are face coverings that include a cover panel made from a cover panel material, a filter made from a filtration media adjacent the cover panel, and a retaining system for securing the face covering to a wearer's face. The face coverings can further include a gasket comprising gasket material connected to a perimeter of the cover panel and configured to contact to a wearer's face. The pressure drop across a combination of the cover panel material and the filtration media is from 45% to 75% of the pressure drop across the gasket material, enabling filtration of airborne contaminants allowing for reduced retaining tension and improved comfort to the wearer.

公开(公告)号：USD944405S1

公开(公告)日：2022-02-22

申请号：US29732123

申请日：2020-04-21

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Designer： Nicholas A. Lee ,  Dale R. Wiehe ,  Kevin R. Wruble ,  Yin C. Quintero ,  Dominic J. Julian ,  Tanya L. Beckwith ,  Edward C. Roberts