Closed-circuit rebreather long-duration breathing apparatus with full-face mask
Respiratory Protection · Self-Contained Breathing Apparatus

Closed-Circuit Rebreather

The Closed-Circuit Rebreather is a long-duration positive-pressure breathing apparatus that recycles exhaled air. Carbon dioxide is removed by a chemical absorbent and oxygen is replenished from a compact cylinder, greatly extending working time compared with open-circuit sets. It suits mine rescue, long-duration industrial rescue and extended confined space operations where endurance is critical.

Long DurationPositive PressureClosed Circuit
Genuine products · Technical support · Fast delivery across India & the GCC

Product Description

The Closed-Circuit Rebreather provides exceptionally long working duration by recycling the wearer's exhaled breath within a sealed circuit. Exhaled air passes through a chemical absorbent that removes carbon dioxide, then oxygen is metered from a compact high-pressure cylinder to replenish what the body has consumed. Because breathing gas is conserved rather than discharged to atmosphere, a single charge can support operations lasting several hours, far beyond the endurance of open-circuit apparatus. Constant positive pressure within the facepiece guards against inward leakage of the surrounding atmosphere.

The apparatus is engineered for mine rescue, long-duration industrial rescue and extended confined space entry, where distances, depths or task durations make frequent cylinder changes impractical. A cooling arrangement manages the heat generated by the absorbent reaction, keeping inhaled gas comfortable during prolonged wear, while integrated monitoring keeps the wearer informed of oxygen supply and operating status. Rugged, sealed construction withstands the harsh conditions of underground and heavy-industry environments. Filosha Industrial supplies the rebreather alongside compatible carbon-dioxide absorbent and full training and servicing documentation, giving rescue and emergency teams across the GCC and India a dependable long-endurance breathing solution.

Key Features

  • Closed breathing circuit recycles exhaled air for long duration
  • Chemical absorbent removes carbon dioxide from the breathing loop
  • Compact oxygen cylinder replenishes consumed oxygen on demand
  • Constant positive pressure prevents inward atmospheric leakage
  • Cooling arrangement manages absorbent reaction heat for comfort
  • Integrated monitoring of oxygen supply and operating status

Applications

  • Mine rescue and underground emergency response
  • Long-duration industrial rescue operations
  • Extended confined space entry and monitoring
  • Tunnel and deep infrastructure emergency works
  • Prolonged tasks in oxygen-deficient atmospheres
  • Standby cover for extended hot-work and vessel entry

Benefits

  • Multi-hour endurance far exceeds open-circuit apparatus
  • Reduced cylinder changes support deep and distant operations
  • Positive pressure gives high protection against leakage
  • Cooled breathing gas sustains comfort during prolonged wear

Technical Highlights

  • Closed-circuit oxygen rebreathing configuration
  • Soda-lime type carbon-dioxide absorbent scrubbing
  • Positive-pressure full-face mask interface
  • Extended working duration of several hours per charge

Industries Served

MiningOil & GasChemicalFire & RescueInfrastructurePower & Utilities

Specifications

ConfigurationClosed-circuit, positive pressure
Gas SupplyCompact oxygen cylinder
CO2 RemovalSoda-lime type chemical absorbent
Working DurationSeveral hours per charge
Mask TypeFull-face, positive pressure
CoolingIntegrated breathing-gas cooling
MonitoringOxygen supply and status indication

Specifications are indicative. Contact us for full technical data, datasheets and available variants.

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