Backpack-mounted wind-powered fire extinguisher

1. Start-up time ≤30 seconds; 2. Maximum pressure MPa ≥4.5; 3. Horizontal range m ≥7; 4. Maximum flow rate L/min ≥3; 5. Net weight Kg ≤13; 6. Curb weight Kg ≤35; 7. Noise level dB(A) ≤105; 8. Emission system complies with GB19724 requirements; 9. Assembly and Appearance: All moving parts shall rotate smoothly; all fasteners shall be secure and reliable. No components shall exhibit warping, distortion, or misalignment. Appearance shall be neat, free of rust or oil stains, with no significant paint peeling, wrinkling, sagging, or bare spots. No dents, scratches, or burrs shall be present. These parameters apply to the base model.