Patent ID: 11865377
Assignee: HONEYWELL INTERNATIONAL INC.
Field: Other consumer goods (Other fields)
Classification: CPC A | IPC A

Claim 9:
10. A respiratory face mask comprising:
at least one filter element configured to filter an airflow into the face mask to generate breathable air for a user;
a seal configured to seal the mask against a face of the user;
at least one speaker located within an interior cavity of the mask configured to generate a sound to complete a fit test for the mask;
at least one microphone located within the interior cavity of the mask configured to detect the sound generated by the at least one speaker during the fit test for the mask, wherein when the sound detected by the microphone is attenuated with respect to a baseline expected sound, the mask is configured to indicate that the fit test has failed; and
at least one processor; and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the processor to at least communicate with and control the at least one speaker and at least one microphone to complete the fit test for the mask.