Honeywell (Fenzy / Survivair) SCBA Air Time Calculator

Select a model, choose your cylinder, enter pressure and breathing rate — duration is calculated instantly.

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Calculator

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Dept. SOP safety buffer.
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Estimated Air Time
Usable pressure—
Usable air volume—
RMV used—
Estimated time—

Honeywell SCBA Air Time Calculator (Survivair / Fenzy Planning Estimate)

Different regions use different Honeywell product families (Survivair, Fenzy, and related lines), but the air math stays the same. This Honeywell SCBA Air Time Calculator estimates remaining time using cylinder water volume, usable pressure after reserve, and RMV (L/min). Use it for training and pre-plans — not for compliance or official documentation.

Honeywell Fenzy (EU) vs Honeywell Survivair / TITAN (US): two separate lines

Honeywell's SCBA portfolio includes the Fenzy line (originating from the French manufacturer acquired by Honeywell), sold in European and EN 137 markets as the Aeris Confort and related models, and the TITAN series, which is Honeywell's NFPA 1981 platform for North American fire services. These are distinct systems: cylinder connectors, pressure ratings (300 bar EN vs 4500 psi NFPA), and electronics are not interchangeable. The Aeris Confort uses the Zenith demand valve; the TITAN uses a different regulator design. Select the model matching your actual unit.

Honeywell Aeris Confort: EN 137 + SOLAS certification

The Aeris Confort is certified to both EN 137 Type 2 and SOLAS (Safety of Life at Sea), making it dual-qualified for fire services and marine emergency response. This is relatively unusual among SCBA and makes the Aeris Confort useful in port authority, coast guard, and vessel firefighting contexts where SOLAS compliance is required alongside structural firefighting capability. Air time calculation is the same — water volume × usable pressure ÷ RMV — but users should be aware of which certification scope applies to their operational context.

Aeris Confort facepiece options: SX-Pro vs Panoramasque

The Honeywell Aeris Confort is available with the SX-Pro facepiece (standard panoramic lens) and the Panoramasque (wider field of view). Facepiece selection affects ergonomics, communication, and thermal exposure, but does not affect cylinder capacity or air consumption. Mask fit and seal are critical to actual air time — a poor-fitting mask allows positive-pressure bypass, which effectively wastes air and reduces protection.

Honeywell TITAN: NFPA 1981 and digital dashboard

The Honeywell TITAN is Honeywell's current US flagship for NFPA markets. It includes a digital pressure display integrated into the harness frame and supports 4500 psi (310 bar) cylinder options. A digital dashboard integration option allows remote monitoring of crew air status. The TITAN is one of the heavier units at 4.9 kg without cylinder — departments moving from lighter units should factor increased wearer fatigue and potentially increased RMV for extended entries.

Using this calculator for non-Honeywell-branded Fenzy units

Some departments operate SCBA units originally sold as Fenzy brand before the Honeywell acquisition — these older units use the same fundamental cylinder and pressure standards as current Aeris Confort units if certified to EN 137 Type 2 at 300 bar. The calculation method applies equally. However, older 200 bar Fenzy units (if in service) would require manual entry of the correct service pressure rather than relying on the presets.

FAQ

These are product families from different acquired companies. Fenzy (French origin) became the basis for Honeywell's EN 137 European line (Aeris Confort). Survivair (American origin) became the basis for Honeywell's NFPA North American line, now sold as the TITAN series. They are not compatible systems — different cylinder types, pressure ratings, and certification standards apply.

SOLAS certification means the unit meets Safety of Life at Sea requirements for marine emergency breathing equipment. It does not change cylinder capacity or air calculation. It means the unit is qualified for use on vessels where SOLAS compliance is required — this is relevant for port authority, coast guard, and vessel firefighting teams.

The TITAN's weight (4.9 kg without cylinder) reflects its electronics package, digital dashboard integration, and NFPA 1981 certification requirements. Heavier equipment increases physiological workload, which can increase RMV during extended operations. If using TITAN units in training, measuring RMV under realistic load conditions gives more accurate planning data.

The standard Aeris Confort configuration supports 300 bar cylinders. Some older or industrial-market variants may support 200 bar steel cylinders. If you have a 200 bar cylinder, manually set the service pressure to 200 bar in the calculator — do not use the 300 bar default, as this will significantly overestimate available air.

Yes, if the unit uses EN 137 Type 2 300 bar cylinders with standard water-volume specifications. The air time formula is universal — water volume (L) × usable pressure (bar) ÷ RMV. The brand on the unit does not change the physics.

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 follow your SOPs and monitor your pressure gauge continuously.

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