Tested and Certified to American Standard: Hood Performance
Function | Test Condition | Duration | Requirement | Result |
Speed of donning | Remove from pack and wear properly | Less than 30 secs | < 30 secs | pass |
Total inward leakage | Test subjects performing standard exercises | 2.5 mins | < 2% | <0.01% |
Ocular leakage | Test subjects performing standard exercises | 2.5 mins | < 20% | <0.1% |
Carbon dioxide build-up | Breathing machine | 25 cycles per min | < 2.5% | < 1.7% |
Breathing resistance | Probed headform with breathing machine | 30 cycles | -3.2 in (-81.5 mm) +1.2 in (+30.6 mm) | pass |
Soot particulate | Inhalation breathing resistance with 200 mg/m3 soot | 5 mins | < 8 in (< 204 mm) | pass |
Soot particulate | Exhalation breathing resistance with 200 mg/m3 soot | 5 mins | < 6 in (< 153 mm) | pass |