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  • Allows for independent breathing in irrespirable conditions, including contaminated ambient air and oxygen deficiency.
  • Suitable for long-duration work and special applications.
  • Modular design for multiple configurations.
  • ASV (automatic switch valve) supplies air even if the airline is disconnected or the external air source fails.
  • Compressed air filters purify air of organic and inorganic gases and vapors.


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MSA MASS Trolley II – Compressed Airline Breathing Apparatus
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