Fire Respiratory Protection Self-Rescue Equipment (Forest Firefighting)

1. Weight: 2.1 – 2.4 kg;
2. Temperature resistance and flame retardancy performance: All components are made of high-temperature resistant and flame-retardant materials;
3. Smoke filtration system performance: Filtration efficiency ≥ 96%; Inlet resistance ≤ 120 Pa; Cumulative protection time of each filter element is no less than 4 hours;
4. Air breathing circulation system performance: During the usage period, it always maintains positive pressure. The gas cylinder gas is oxygen-enriched air (O2 ≥ 30%), the supply time is no less than 5 minutes, the oxygen concentration in the airbag is ≥ 21%, the carbon dioxide concentration is no more than 1.0%; Dynamic inlet resistance is no more than 130 Pa, dynamic exhaust resistance is no more than 300 Pa;
5. Rated working pressure of the gas cylinder: 30 MPa; Volume of the gas cylinder: 0.48 L; Oxygen supply time: ≥ 4 minutes;
6. Face mask air bypass device: Has dust filtration function. Dust particle size is less than 100 mesh. When opened, the inlet resistance is ≤ 80 Pa;
7. Within the radiation heat flux range of (7.8 – 8.0) kw/m’ and the positive pressure supply gas period of 6 minutes, the facial temperature rises from normal temperature to 42°C, the forehead and neck temperatures rise from normal temperature to 48°C, effectively protecting the face and respiratory system.