HYZ4/2 positive pressure oxygen breathing apparatus

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$600.00 - $900.00 / Pieces | 1 Piece/Pieces (Min. Order)
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Quick Details
Place of Origin:
Shandong, China
Brand Name:
Model Number:
Product name:
Positive pressure oxygen breathing apparatus
Supply Ability
Supply Ability:
50 Piece/Pieces per Week
Packaging & Delivery
Packaging Details
Carton box
Lead Time :
5-7 working days after payment

HYZ4/2 positive pressure oxygen breathing apparatus



HYZ4/2 isolated positive pressure oxygen breathing apparatus are mainly suitable for poisonous and harmful gas of coal mine, fire fighting, chemical industry, tunnel, scientific research and high-rise buildings, rescue and relief in anoxic disaster environment and seek for expedition.


1.Logical structure design, comfortable and reliable. 

2.Logical casing design, crush-proof, good impermeability, safe and stable.

3.HYZ4 cooling canister chamber equips with drainage, which protects against the breathing system resistance.

4.Excellent cooling performance, light and easy to carry. 

5.Adjustable constant flow unit: Users can adjust the oxygen supply constant amount according to their needs. The supply is stable, clear and long lasting.

6.Self-supplement unit: supplement oxygen in time, safer and save more oxygen.

7.Face mask is equipped with quality speaking unit and drainage , more convenient and user friendly.





Exhalation resistance

≤600 Pa

Inhalation resistance

0~600 Pa

Oxygen supply ration

≥1.4 L/min  

Automatic & manual oxygen supply ration

≥80 L/min

Automatic opening pressure of supply valve

10~245 pa

Opening pressure of bleed valve

400~700 pa

Inhaling concentrations of carbon dioxide


Inhaling oxygen concentration


Alarm volume 

80 dB(A)  

Alarm time

30~60 s

Rated service time


Oxygen bottle rated working pressure

20 MPa    

Oxygen bottle volume

2.4 L

Oxygen storage

≥480 L  

Calcium hydroxide

≥2.1 kg

Weight(without calcium hydroxide & oxygen)