RHZKF6.8 positive pressure firefighting air respir

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.