| ◆ | 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 shape of Chinese people, providing a better fit |
| ◆ | Built-in sponge nose pad: Perfectly fits the bridge of the nose, offering better sealing performance |
