US 11,865,377 B2
System and method for fit test and monitoring for respiratory products
Jennifer Shen, Morris Plains, NJ (US); Mark Hua, Morris Plains, NJ (US); Kevin Lu, Morris Plains, NJ (US); Bruce Liu, Morris Plains, NJ (US); and Wei Sun, Morris Plains, NJ (US)
Assigned to HONEYWELL INTERNATIONAL INC., Charlotte, NC (US)
Appl. No. 16/965,055
Filed by HONEYWELL INTERNATIONAL INC., Morris Plains, NJ (US)
PCT Filed Feb. 14, 2018, PCT No. PCT/US2018/018094
§ 371(c)(1), (2) Date Jul. 27, 2020,
PCT Pub. No. WO2019/160535, PCT Pub. Date Aug. 22, 2019.
Prior Publication US 2021/0106854 A1, Apr. 15, 2021
Int. Cl. A62B 27/00 (2006.01); A62B 7/10 (2006.01); A62B 9/00 (2006.01); A62B 18/02 (2006.01); A62B 18/08 (2006.01); A62B 23/02 (2006.01)
CPC A62B 27/00 (2013.01) [A62B 7/10 (2013.01); A62B 9/006 (2013.01); A62B 18/02 (2013.01); A62B 18/08 (2013.01); A62B 23/02 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for completing a fit test on a face mask, the method comprising:
generating, by a speaker, a sound for a predetermined length of time during the fit test, wherein the speaker is installed within an interior cavity of the face mask and is configured to produce the sound within the face mask;
detecting, by a microphone, sound generated by the speaker during the fit test, wherein the microphone is installed within the interior cavity of the face mask and configured to detect the sound within the facemask;
comparing a detected signal from the microphone to a baseline expected sound;
in an instance in which the detected signal is unattenuated with respect to the baseline expected sound, indicating to the user that the fit test is completed and passed; and
in an instance in which the detected signal is attenuated with respect to the baseline expected sound, indicating to the user that the fit test is completed and failed.