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公开(公告)号：US20210106854A1
公开(公告)日：2021-04-15
申请号：US16965055
申请日：2018-02-14
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Jennifer SHEN , Mark HUA , Kevin LU , Bruce LIU , Wei SUN
Abstract: Embodiments include systems and methods for completing a fit test on a respiratory mask A method may comprise installing a speaker within an interior cavity of the face mask, wherein the speaker communicates with an electronics unit; installing a microphone within the interior cavity of the face mask, wherein the microphone communicates with the electronics unit; generating, by the speaker, a sound during the fit test; detecting, by the microphone, sound generated by the speaker during the fit test; comparing, by the electronics unit, a detected signal from the microphone to a baseline expected sound; when the detected signal is within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and passed; and when the detected signal is not within a certain range of the baseline expected sound, indicating to the user that the fit test is completed and failed.
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公开(公告)号：US20190275359A1
公开(公告)日：2019-09-12
申请号：US16336945
申请日：2016-09-29
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor： Jennifer SHEN , Robin XIANG , Matthew CHEN , Jerry SHEN , Mark HUA
Abstract: Embodiments relate generally to respirator face masks, and specifically to powered face masks which may be custom-controllable to better provide for the specific air needs of the individual user wearing the mask. For example, the face mask embodiments typically include a filter and a motorized fan, both generally located on the face mask itself, along with a processor. The processor then may use inputs, for example specific to the user and/or the environment, to control the fan speed. Thus, the fan speed of the face mask may be custom controlled to provide the appropriate amount of filtered air as the specific user needs it.
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