HYZ4 isolated positive pressure oxygen breathing apparatus manufacturers HYZ4 isolated positive pressure oxygen breathing apparatus, HYZ4 isolated positive pressure oxygen breathing oxygen breathing apparatus Prices isolated positive pressure oxygen breathing apparatus manufacturers use: HYZ4 isolated positive pressure oxygen breathing apparatus mainly applicable toxic and harmful gas coal, fire, chemical, tunnels, research, and high-rise buildings, anoxic environment disaster rescue and relief, search exploratory work wear use. Features: HYZ4 isolated positive pressure oxygen breathing apparatus for personal respiratory protection is a new generation of products. In the case of isolation, and can ensure the supply of oxygen to vital capacity with people exactly match with circulating air passage open, stable and adequate supply, tracking and timely supply, use and comfortable to wear, etc.; their small breathing resistance, weight, small size long time protection features, stability and high reliability, simple structure, demolition and other advantages of maintenance is very convenient, and widely recognized. HYZ4 isolated positive pressure oxygen breathing apparatus developed by our company meet the MT867-2000 standard HYZ4 isolated positive pressure oxygen breathing apparatus, to fully absorb the advantages of similar products at home and abroad and combining the actual situation of China's rescue team in the structural design of the product highlights the small size, light weight, reliable performance, comfortable to wear, plus suitable for use in underground roadway, narrow environment requires the actual use of the ambulance crew. HYZ series of positive pressure breathing apparatus may be operating in any toxic and hypoxic environment and risk areas. HYZ4 isolated positive pressure oxygen breathing apparatus parameters: respiratory volume: 30L/min expiratory resistance: ≤ 600Pa inspiratory resistance:> 0 quantitative amount of oxygen: 1.6 ± 0.1L/min automatic replenishment amount of oxygen:> 100L/min move oxygen supply:> 100L/min automatic replenishment valve open pressure :50-245Pa inhale carbon dioxide concentration: 21% alarm alarm pressure: 4 ~ 6MPa alarm alarm time: 30 ~ 60S sound Middleweight: ≥ 80db