... volume, light weight, Product name: Self-contained Oxygen breathing apparatus for fire fighting International Quality Standard :ISO9001:2008CE ... HL-OBA012.5L20 MPa ≥ 1.4L/min ≥2.5KG ≥ 4 hours14.5608×418×168Full Picture : Features of Advantages:This Oxygen Breathing Apparatus ... safety, high reliability, and high comfortableness, this Oxygen Breathing Apparatus is widely used by the fire fighters and ...