oxygen respirator is a closed-circuit SCBA used in the contaminated or oxygen-deficient atmosphere, such as mine, fire fighting

HYZ series oxygen respirator is a closed-circuit SCBA used in the contaminated or oxygen-deficient atmosphere, such as mine, fire fighting, chemical industry, petroleum and tunnel and so on. It provides long-playing breath for the workers to rush to deal with an emergency and provide disaster relief. It adopts positive pressure principle to supply oxygen, which makes the pressure in the face mask exceed the atmopheric pressure, so it can efficiently stop harmful gas outside from flowing into the face mask, which assure rescue corps safety.