MicroPore ExtendAir Cartridge (EAC)

The Micropore ExtendAir Cartridge (EAC) is a high-performance military-grade CO₂ absorbent cartridge engineered for rebreather and life-support applications in military, commercial and specialist diving operations. Developed by Micropore Inc. in the USA, the ExtendAir system utilises patented solid absorbent cartridge technology designed to outperform traditional granular CO₂ absorbents in operational efficiency, breathing resistance and handling safety.  

Unlike conventional granular absorbents, the ExtendAir Cartridge uses a moulded absorbent sheet formed into a controlled-flow cylindrical cartridge. This design significantly reduces absorbent dust, minimises channeling and lowers the risk of “caustic cocktail” in flooded systems. The cartridge technology also provides lower work of breathing (WOB), improved duration consistency and simplified handling during deployment in confined or maritime environments.

Features

• Military Grade CO₂ Absorbent Cartridge – Designed for military and professional rebreather applications 
• Low Work of Breathing (WOB) – Reduced breathing resistance compared with granular absorbents 
• Flood Tolerant Design – Reduces risk of caustic cocktail during flooded scrubber events 
• Dust-Free Cartridge System – Eliminates absorbent dust contamination associated with granules 
• No Slumping or Channeling – Factory-controlled flow channels improve absorbent consistency 
• Rapid Cartridge Change-Out – Cartridge installs in seconds without packing or settling procedures 
• Shock & Vibration Resistant – Suitable for transport, deployment and maritime operations 
• Single-Use Sealed Packaging – Simplifies logistics and storage management 
• Berry Compliant / Manufactured in USA

Operational Advantages

• Provides lower breathing resistance than traditional granular absorbents
• Reduces variability caused by manual canister packing techniques
• Minimises risk of dust contamination in breathing loop systems
• Faster loading and cartridge replacement during operational deployment
• Improved reliability during transport, vibration and shock exposure
• Extended duration performance compared with equivalent granular absorbents
• Suitable for submarine, combat diver and specialist life-support applications

Product Type: CO₂ Absorbent Cartridge ​​​​
Technology: ExtendAir® Solid Cartridge System
Absorbent Chemistry: Calcium Hydroxide with Sodium & Potassium Hydroxide
Cartridge Type: Molded Sheet / Parallel Flow Cartridge
Cartridge Weight: Approx. 2.2 kg
Dimensions: Approx. 125 mm × 195 mm
Operating Temperature: -30°C to +40°C
Duration: Up to 4 hours (application dependent)
Shelf Life: Up to 5 years (sealed storage)


Product Data & NSN's

SKU	DESCRIPTION	NSN
RBSM-0655C	EXTENDAIR CO2 ABSORBENT	4220-99-327-8191