HYF4 Portable Isolated Negative Pressure Oxygen Respirator

Working principle

Respiratory airflow alternately run for the positive and negative pressure, breathing resistance is small, pressure reducer, counterflow.
Assembling of oxygen for quantitative oxygen vavle, atomatic supply vavle, manual supply vavles, pressure reducing vavles, safety valves, emergency switch focus to design into one, compact, easy disassembly and maintenance.
Equipped with a row of saliva in the mouth with the pump, the saliva can always be ruled out.

Main Parameter

1.The main technical parameters:
(1) Oxygen bottle of 19.61 Mpa 200L oxygen storage
(2) Oxygen supply ration: 1.3~1.1L/min
(3) Automatic exhaust pressure: +196~294Pa
(4) Automatic supply pressure: -147~-245Pa
(5) Effective use time: 2h
2. Dimensions and weight:
(1) Weight: (including oxygen and absorbent) no more than 7kg
(2) Overall dimension: no more than 345*345*190 mm

Technical Parameters

Item	Technical data
Duration	≥45min
Capacity of oxygen bottle	> 0.3L
Filling pressure of oxygen bottle	≥19MPa
Oxygen storage	≥80L
Oxygen-supplying modes	Quality fixed	> 1.2L/min
	Manual	> 60L/min
	Automatically	> 60L/min
Pressure of auto-exhaust	150 Pa~300Pa
Dimensions	235×170×95mm
Weight	2.3kg