公开(公告)号：US20210142465A1

公开(公告)日：2021-05-13

申请号：US17250081

申请日：2019-05-14

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Claire R. Donoghue ,  Christopher P. Henderson

IPC: G06T7/00 ,  G06T7/73 ,  A62B27/00

Abstract: Example PPE fit systems are described that verify that a current fit of a PPE on a wearer is consistent with a previous fit test of the PPE on the particular wearer. During a fit test of a PPE, an image capture device captures an image of the wearer with the PPE that represents a verified reference for a fit of PPE of a same or similar type on the particular wearer. During a verification check, an image capture device captures an image of the wearer with the PPE. Visual features of the fit test image are compared with visual features of the verification image to determine whether the fit of the PPE on the wearer is correct. Differences between the visual features are alerted to the user, such as for correction, adjustment, or retest.

公开(公告)号：US20200230444A1

公开(公告)日：2020-07-23

申请号：US16641687

申请日：2018-08-28

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew S. Viner ,  Richard C. Webb ,  Nicholas G. Amell ,  Jessica L. T. Hauge ,  David R. Stein ,  Andrew P. Bonifas ,  Neal A. Rakow ,  Caroline M. Ylitalo ,  Joseph P. Kronzer ,  Claire R. Donoghue ,  Christopher P. Henderson

IPC: A62B27/00 ,  G01N27/02 ,  G06T7/73

Abstract: A method of fit testing includes providing a respirator; providing a sensor having a sensing element removably positioned substantially within an interior gas space of the respirator; providing a reader configured to be in wireless communication with the sensor; positioning the respirator over a mouth and a nose of a user while the sensor is positioned substantially within an interior gas space of the respirator; and observing respirator fit assessment data communicated from the sensor to the reader.