MF31 type full face ball mask for respirator
MF31 type full face ball mask for respirator
Overview
The MF31 full-face ball mask for respirators is the main component of a positive-pressure self-contained open-circuit compressed air respirator. To protect the user’s face and respiratory organs. The full-face ball mask for respirators is mainly used with the RHZK6.8/30 positive pressure fire-fighting air respirator. It can also be used in conjunction with the air supply devices of other positive-pressure self-contained open-circuit compressed air respirators. It is widely used in fire protection, chemical industry, metallurgy, shipbuilding, military operations, anti-terrorism and public emergencies and other workplaces for self-protection and other rescue operations.
Features
- The mask is made of silicone rubber injection molding. The sealing frame of the mask body is designed according to the head shape of Chinese adults. It adopts a folded edge form, which is easy to air-tight and comfortable to wear. It can be worn by more than 95% of adult citizens.
- The spherical lens of the mask is made of polycarbonate, and the surface coating has a wide field of view, good optical and impact resistance properties. Baoming uses a water-blocking cover structure, which has good brightness protection performance.
- fixed system
Technical Parameters
| Mask air leakage coefficient | Leakage rate is not greater than 0.05% |
| Viewable range | Total visual field ≥70%, binocular visual field ≥55%, lower visual field ≥35% |
| Mask lens light transmittance | ≥85% |
| Mask air tightness | Pressure drop ≤50Pa within 1 minute |
| Storage period | 5 years |
