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Ocenco β€” Escape Device Reference

Closed-circuit oxygen escape equipment: use the manufacturer's approved instructions. The open-circuit air-time formula does not apply.

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Calculator

Ready
Reduce for partly-filled cylinder.
Dept. SOP safety buffer.
or enter custom RMV
Custom value takes priority when entered.
Select a model to get started.
Estimated Air Time
Usable pressureβ€”
Usable air volumeβ€”
RMV usedβ€”
Estimated timeβ€”

Ocenco equipment listed here uses closed-circuit oxygen escape technology. This page is reference-only: an open-circuit SCBA formula cannot predict its duration. Use the exact manufacturer approval and escape instructions.

Escape-device documentation

Use the manuals and approval labels at https://www.ocenco.com/product-information/. Do not use a calculated oxygen-depletion rate as an escape-time guarantee or as authorization for entry and rescue.

FAQ

The listed devices use closed-circuit oxygen technology. Duration depends on the approved device and its breathing circuit, not the open-circuit water-volume/pressure/RMV calculation. Use the manufacturer documentation.

Notes & Safety

This is an estimate based on the values you enter. Real-world air consumption changes with workload, stress, temperature, mask seal, leaks, and individual physiology. Always monitor your pressure gauge and follow your department's SOPs.

  • Interior attack / heavy work: use 60–80 L/min RMV for conservative planning.
  • Partly-filled cylinder: reduce the starting pressure field to your actual reading.
  • High-rise / extended operations: use the approved air-management plan; default values are not exit recommendations.
  • Personal RMV: if you have done a consumption test, enter your own value in the custom RMV field for the most accurate estimate.

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⚠️ Disclaimer: This tool is for training and planning purposes only. Do not rely on these calculations as the sole basis for live fireground operations. Always defer to your department's SOPs. Read full operational disclaimer.

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