公开(公告)号：US20220054869A1

公开(公告)日：2022-02-24

申请号：US17309788

申请日：2019-12-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： David R. Stein ,  Caroline M. Ylitalo ,  Craig E. Colton ,  Steven T. Awiszus ,  Shane A. Hainey ,  Richard C. Webb ,  Scott A. Larson ,  Andrew W. Long ,  Daniel B. Taylor

IPC: A62B18/02 ,  A62B9/00

Abstract: A system includes a negative pressure reusable respirator configured to be worn by a worker and to cover at least a mouth and a nose of the worker, a sensor configured to generate sensor data indicative of a characteristic of air within a work environment, and at least one computing device. The negative pressure reusable respirator includes at least one contaminant capture device configured to remove contaminants from air as the air is drawn through the contaminant capture device when the worker inhales. The at least one contaminant capture device is configured to be removable from the negative pressure reusable respirator. The at least one computing device configured to determine whether the at least one contaminant capture device is due for replacement, and perform one or more actions in response to determining the at least one contaminant capture device is due for replacement.