| ◆ | Six-layer structure: Non-woven fabric, electrostatic cotton, melt-blown fabric, activated carbon |
| ◆ | High-efficiency melt-blown activated carbon layer: Removes organic odors with granular carbon |
| ◆ | 3D three-dimensional design: Specifically designed and developed for the facial contours of Chinese people, providing a closer fit |
| ◆ | Built-in sponge nose pad: Fits perfectly with the bridge of the nose, providing better sealing. |
| ◆ | Exhalation valve: Discharges heat and moisture, improving wearing comfort |
