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CRUSOE 240

The CRUSOE 240 is an operationally-proven closed-circuit breathing apparatus (CCBA) developed to meet defense industry requirements for prolonged respiratory protection in hazardous, oxygen-depleted environments. Weighing ~11.5 kg, the CRUSOE 240 delivers ~4 hours of self-contained breathing per load—and it accepts hot-swappable oxygen cylinders and CO₂ scrubbers to extend operations in the field. Built for underground, confined-space, and CBRN-risk missions, CRUSOE 240 provides reliable endurance without the logistics burden of traditional open-circuit systems.
Caeli CRUSOE 240: 4-hour closed-circuit CCBA terrestrial rebreather developed for special military forces and CBRN response.

Mission-Proven, TRL 9 Certified

The CRUSOE 240 is a mission-proven closed-circuit rebreather, validated at Technology Readiness Level 9 (TRL 9) and successfully deployed in live operations by global special operations and response teams. Purpose-built for environments where endurance, and survivability are non-negotiable. With its rugged, low-profile design and advanced safety systems, CRUSOE 240 gives operators the confidence to perform in oxygen-depleted, contaminated, and confined environments where traditional SCBAs fall short.

Ice-less Cooling & Clear Vision

Caeli’s advanced cooling system is engineered to maintain operator comfort and system reliability under extreme conditions. By eliminating the need for ice packs or pre-mission chilling, it ensures consistent airflow temperatures throughout extended operations. This design reduces logistical burden, prevents regulator freeze, and protects operators from heat stress — whether in confined subterranean environments, high-exertion CBRN response, or long-duration tactical missions.

Extended Ops via Hot-Swap

Features Caeli’s hot-swappable scrubber and oxygen cartridge system. A spent scrubber canister or O₂ cylinder can be replaced in the field within minutes, minimizing downtime. This lets teams push beyond 4 hours by swapping in fresh consumables as needed (with proper training).

Closed-Circuit System

100% oxygen rebreather recycles exhaled breath, scrubs CO₂, and doses O₂ as needed, no reliance on ambient air in toxic or smoke-filled spaces.

Highlights & Benefits

Key Features

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Closed-circuit oxygen loop delivers up to a full 4-hours of breathable air per load.

4-Hour Runtime

Quick-release system allows field switching for continuous use.

Hot-Swap Capable

Ice-free, air-cooled breathing loop prevents heat stress and extends wear time.

FCA²F Cooling System

Integrated nozzle system directs oxygen across the visor to prevent fog buildup and maintain visibility in critical moments.

Auto Mask Defogging

Just 11.5 kg with compact tactical dimensions for streamlined load carriage.

Lightweight Form Factor

Reinforced components for high-heat environments

Fire-Resistant Construction

Seamlessly fits with body armor, PPE, and tactical loadouts.

Operator Integration

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Caeli CRUSOE 240: 4-hour closed-circuit CCBA terrestrial rebreather developed for special military forces and CBRN response.
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Technical Specifications

Type

Closed Circuit Breathing Apparatus (CCBA)

Duration

4+ hours of CCBA operation (per magazine)

Download Product Brochure

Access the full details on performance, features, and specifications. Get the data you need to evaluate how Caeli systems can support your mission.

A U.S. Special Forces operator in tactical training wearing the Caeli CRUSOE 240
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