Origin	China
Model Number	HYZ-2/HYZ-4
Brand Name	GOKANG

Application:

HYZ-2/HYZ-4Isolated Positive Pressure Oxygen Breathing Apparatus is breathing apparatus used for personal protection, with reliable performance, comfortable carrying and convenient maintaining. Main application into coalmine, fire protection, chemical industry, tunnel, scientific research fields where there is noxious& anoxic oxygen insufficient emergency disaster existence. 

Main specification             

Model: HYZ-2

Duration: 120 min

Working pressure for oxygen bottle: 20 MPa

Capacity for oxygen bottle: 1.4L

Oxygen storage: 280L

Dimension: 518×370×160mm

Weight: 11Kg

Model: HYZ-4

Duration: 240 min

Working pressure for oxygen bottle: 20 MPa

Capacity for oxygen bottle: 2.4L

Oxygen storage: 480L

Dimension: 560×370×160mm

Breathing rate: 30L/min

Exhaling resistance: (0~600)Pa

For the two types, below items are identical;

Inhaling resistance: ≤700Pa

Fixed Oxygen-supplying: ≥(1.4~1.7)L/min

Manual or automatic oxygen-supplying: ≥80 L/min

Start pressure for Auto-supplying valve: (10~245) Pa

Inhaling Carbon dioxide concentration: ≤1%

Inhaling oxygen concentration: >21%

Warning pressure for alarm: (4~6)M Pa

Warning time for alarm: (30~60)s

Sound level: ≥80dB