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Closed LoopAir Systems
Supporting Life Beyond Earth
Honeywell’s next-generation Air Revitalization Systems (ARS) deliver continuous, scalable and contaminant-tolerant, life support for harsh space environments. Built on decades of CO₂-removal expertise and full-scale prototype testing, our systems combine Carbon Dioxide Removal by Ionic Liquid System (CDRILS) and Methane Pyrolysis (MP) to recover nearly 100% of oxygen while tolerating humidity and trace contaminants for space stations, lunar habitats and deep-space missions.
Next-Generation Air Revitalization: What Sets Us Apart
Experience cleaner, more efficient life support that reduces mission costs, boosts autonomy and maximizes oxygen recovery. Our patented, closed-loop technology ensures sustainability and confidence.
Mission Efficiency & Operational Reliability
• Lowers mission life-cycle costs
• Scales to crew and duration
• Integrates with other air systems
Autonomy & Environmental Robustness
• Supports crewed missions, in extreme environments, with low maintenance.
• Robust against contaminants.
• No soot, clean closed-loop process.
Sustainability & Technology Leadership
• Stops overboard venting of CO₂, enabling near-100% O₂ recovery
• 20+ patents covering CO₂ removal and Methane Pyrolysis advancements.
The Science Behind Our Systems
Honeywell’s Air Revitalization System (ARS) is a closed-loop environmental control and life support solution designed for long-duration spacecraft habitats. Utilizing advanced ionic liquid technology to continuously remove CO₂ and contaminants, paired with Methane Pyrolysis (MP) to recover oxygen from CO₂, ARS helps eliminate costly resupply missions and outperforms traditional systems that vent CO₂ overboard.
Unlock More Space Insights
Ever wonder how astronauts breathe in Space? We have ingenious ways to provide oxygen and recycle carbon dioxide to make long-term space travel possible. Find out why salt is a hero! Also, are astronauts bad at watering plants?
Find out in this Proud Space Nerds Video: How to Build a Spaceship – Breathing in Space
Learn, explore and stay informed on the latest advancements in space technology.
Copyright © 2026 Honeywell International Inc.
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