1. Dimensions: 280*360*190cm

2. Machine weight: ≤14.5kg

3. Working time: >4H

4. Storage temperature: -20℃~+60℃

5. Working temperature: -10℃~+60℃

6. Breathing resistance: exhalation resistance ≤500Pa, inhalation resistance ≤300Pa

7. Inhaled gas: oxygen content>80%, carbon dioxide concentration ≤1.0%

8. Inhalation temperature: ≤35℃

9. Maximum surface temperature: temperature level: T4 level (S130℃)

10. Explosion-proof performance of shell: Ex ia lCT4 Ga

11. Dustproof and waterproof performance of the shell: IP67

12. Three-level alarm of the controller: 50%, 20%, 5% three-level residual sound and light alarm

13. Alarm sound level intensity: >90dB(A)

14. Field of view: total field of view>70%, binocular field of view>55%, lower field of view>35°

15. Mask quick plug connection; manual defog device; residual display and alarm device

16. Handheld terminal controller: with remaining capacity, remaining time prompt and alarm; personnel fall alarm