公开(公告)号：US20220241619A1

公开(公告)日：2022-08-04

申请号：US17610222

申请日：2020-04-30

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Robert Kyle Fullerton ,  Silvia Geciova-Borovova Guttmann ,  Robert D. Williams ,  Scott M. Purrington ,  Jhansi R. Arikatla

IPC: A62B7/02 ,  A62B17/04 ,  A62B9/00 ,  A62B17/00

Abstract: A breathing system hood assembly that fits over a user's head includes an air impermeable hood having an opening dimensioned to fit over the user's head and an elastically deformable neck seal arranged along at least a portion of the opening. The neck seal includes a region wherein the neck seal is arranged in overlapping relation with itself, whereby the neck seal can expand to fit over a user's head and contract to create a seal with the user's neck.