Positive Pressure Air Respirator QG-RHZK001 1. Feature: The spherical silica materials mask with the most advanced international technol logy the face piece has a wide and bright field of vision,good air tightness and can join and separate with the supply valve quickly.the supply valve has a big ventilation flow capacity, breathe easily,safe and reliable residual air alarming equipment, which is audible evening noisy place. High strength but low weight carbon fibre composite bottle, Well-designed and comfortable carbon firbre backboard, with adjustable and uick-fastened waist and shoulder belt. 2. Technical parameter: Model QG-RHZK001 Service time 60min Volume of air bottle 6.8L Max oxygen storage 200L Oxygen supply ration 1.4~1.61L/min Automatic oxygen supply ration >30L/min Manual oxygen supply ration >80L/min Maximum gas flow of gas decompression >1000L/min Gas flow for maximum valve >500L/min Rated working pressure 30MP Manual oxygen supply pressure 50~200Pa Safety valve opening pressure 0.9-1.2MPa Alarm pressure 5±0.5MPa, 5±0.5MPa Respiratory resistance 100pa-600pa Cylinders with carbon fiber wrapped composite gas cylinders Dimensions (without mask mm) 620×250×320 Gross weight 11.5kg 3.Application It is widely used in firefighting, chemical industry, shipbuilding industry, petroleum industry, metal lurgial industry, gasworks, petroleum storage, laboratory, mine and etc. It helps emergency squad to work safely in anoxic, smoky or poisonous environments.