呼吸防护装置及其制造方法
By introducing pleated, expandable filter media into the breathing device, and utilizing elastic fibers and absorbent materials, the issues of comfort and fit during wear of the breathing protective device have been resolved, achieving a higher fit and filtration efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 3M INNOVATIVE PROPERTIES CO
- Filing Date
- 2024-11-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing respiratory protective devices have issues with comfort and fit during wear, especially when the face moves, they tend to slip or shift, leading to leakage and discomfort. Furthermore, traditional designs may be heavy and not flexible enough.
The use of pleated expandable filter media, which forms a stretchable pleated structure by introducing elastic fibers or filaments between nonwoven porous meshes, enhances the fit and comfort of the media, and is combined with adsorbent materials to improve filtration efficiency.
It improves the fit and comfort of the breathing device, reduces breathing resistance, extends service life, and maintains high-efficiency filtration performance.
Smart Images

Figure CN122422017A_ABST