【Scope of application】 It is used to detect the dead cavity of the protective mask, that is, the volume fraction of CO2 in the inhaled air. 【Relevant Standards】

GA124 “Positive Pressure Fire Air Respirator” Article “6.13.3 Determination of Carbon Dioxide Content in Inhaled Gas” GB2890 “Respiratory Protection Self-Priming Filter Gas Mask” Article “6.7 Mask Dead Cavity Test” Clause GB 19083 Medical Protective Mask 5.5 Dead Cavity GB 2626-2019 Respiratory Protective Equipment Self-Priming Filter Anti-Particulate Respirator 6.9 Dead Cavity; GB 21976.7-2012 Building fire escape and evacuation equipment – Part 7: Filtered fire self-rescue respirator; BS 149:2001 + A1:2009 7.12 Carbon dioxide content in inhaled air; Application industry PM2.5 mask. Medical protective mask product testing

【Scope of application】: It is used to detect the dead cavity of the protective mask, that is, the volume fraction of CO2 in the inhaled air. 【Meet the standards】： GA124 “Positive Pressure Fire Air Respirator” “6.13.3 Determination of carbon dioxide content in inhaled gas” GB2890 “Respiratory Protection Self-priming Filter Gas Mask” “6.7 Mask Dead Chamber Test” clause GB 19083 Medical protective masks 5.5 Dead cavities GB 2626-2019 Respiratory protective equipment – Self-priming filter anti-particulate respirator 6.9 Dead chamber; GB 21976.7-2012 Building fire escape and evacuation equipment – Part 7: Filtered fire self-rescue respirator; BS 149:2001 + A1:2009 7.12 Carbon dioxide content in inhaled air; Application industry PM2.5 mask. Medical protective mask product testing 【Technical Parameters】: 1. Working environment: The concentration of CO2 gas in the surrounding air ≤ 0.1%. 2. CO2 gas measurement flow meter, measuring range: 10-100L/min, resolution is 0.1L/min; Accuracy: 0.5 class. 3. Carbon dioxide gas source: the volume fraction of CO2 gas (5.0±0.1)%. Resolution: 0.01% 4. CO2 gas analyzer, range: 0~12%, repeatability class I., resolution: 0.1%. 5. The test head mold is divided into three specifications: large, medium and small. 6. Equipped with a handheld anemometer, measuring range: 0-10m/s, accuracy: ± (0.1m/s + 5% measured value) when the measurement range (0-2m/s). 7. Equipped with electric fan with wind speed of 0.5m/s. 8. The respiratory rate adjustment range of artificial lungs is (10-40) times/min, and the respiratory tidal volume adjustment range is (0.5-3.0) L 9. Power supply: AC220V, 50Hz 10. Overall dimension (L×W×H): 820mm×520mm×1380mm 11. Weight: about 80Kg