United States
US 12,702,872 B2
Annular unit for moisture management in respiratory mask
US 12,702,872 B2 is a granted patent from the United States Patent and Trademark Office (USPTO), dated 2026-08-11. Applicant: HONEYWELL SAFETY PRODUCTS USA, INC. Its PDF downloads from this page without an account, up to 5 a day.
- Applicant
- HONEYWELL SAFETY PRODUCTS USA, INC.
- Inventors
- Anna Liu; Linan Zhao; Kevin Lu
- Publication date
- 2026-08-11
- Filing date
- 2020-11-11
- Document type
- B2 Granted patent
- Also written as
- US 12,702,872 B2 · US12702872 · 12702872
Abstract
Examples of the present disclosure relate generally to absorbing elements in respiratory face masks. In some examples, a structure for respiratory masks that can both absorb moisture from the face (such as perspiration, as well as from condensed moisture in the breath), and maintain a low breath resistance (won't increase the breath resistance significantly) is disclosed herein. The structure includes an annular structure added to the respiratory masks for moisture management. In some examples, the annular structure is made up of moisture absorbent materials.…
The opening of the abstract. The full text is in the PDF.
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Patent office website: United States Patent and Trademark Office (USPTO)
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