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公开(公告)号:US20240189633A1
公开(公告)日:2024-06-13
申请号:US18521618
申请日:2023-11-28
Applicant: HONEYWELL INTERNATIONAL INC.
Inventor: En Yi CHEN , Hang TIAN , Da Cheng YE
CPC classification number: A62B18/08 , A62B18/006
Abstract: Example respiratory protective devices with improved sound insulation are provided. For example, an example respiratory protective device comprises an inner shell component and a fan mounting component. In some examples, the inner shell component defines at least one acoustic insulation portion that is indented on an outer surface of the inner shell component. In some embodiments, the fan mounting component protrudes from an indented surface of the at least one acoustic insulation portion and comprising a plurality of acoustic insulation ribs.