Item

Specification

Type

HYZ-2

HYZ-4

Duration

120 min

240 min

Working pressure for oxygen bottle

20 MPa

20 MPa

Capacity for oxygen bottle

1.4L

2.4L

Oxygen storage

280L

480L

Dimensions

518×370×160mm

560×370×160mm

Weight

11 Kg

12Kg

Breathing rate

30L/min

Exhaling resistance

(0~600)Pa

Inhaling resistance

≤700Pa

Fixed Oxygen-supplying

≥(1.4~1.7)L/min

Manual or automatic oxygen-supplying

≥80L/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)MPa

Warning time for alarm

(30~60)s