ARC CO2 4800L CO₂ Scrubber for Shelters: Professional Air Regeneration System for Civil Defence and Protected Facilities

Oct 7

3 min read

Maintaining breathable air quality inside enclosed shelters is one of the most critical aspects of life-support engineering. During prolonged operation in lock-up mode, carbon dioxide (CO₂) generated by human respiration gradually accumulates and must be removed to maintain safe atmospheric conditions. The ARC CO2 4800L is a professional carbon dioxide removal system (scrubber) developed by Atmas Group specifically for civil defence shelters, bunkers and industrial protected facilities. According to the manufacturer, the system is designed to regenerate indoor air by removing carbon dioxide and carbon monoxide from enclosed environments where external fresh air supply is unavailable or limited. Atmas Group

Purpose of the ARC CO2 4800L System

According to Atmas Group, the ARC CO2 4800L is intended for installation in:

Civil defence shelters
Bunkers
Industrial protected facilities
Other enclosed spaces operating without external air supply

The system is designed to "scrub" indoor air by removing harmful gases produced during human occupancy, extending the safe duration of stay inside protected facilities operating in isolation mode. Atmas Group

Air Regeneration Principle

The manufacturer describes the ARC CO2 4800L as an air regeneration solution rather than a conventional ventilation unit.

Its function is to:

remove carbon dioxide (CO₂);
regenerate indoor air by removal of CO₂ from the air;
support longer occupancy inside shelters and enclosed spaces.

According to Atmas Group, these systems are particularly intended for isolated environments where fresh outside air cannot be introduced for extended periods. Atmas Group

Replaceable CO₂ Filter

A key component of the ARC CO2 4800L is its replaceable carbon dioxide filter.

According to the manufacturer:

each replaceable filter absorbs not less than 4800 litres of CO₂;
replacement filters should be stored sealed;
used filters can be replaced quickly when required.

The company also notes that the filter is compatible with the ARC CO2 4800L scrubber and is intended for rapid replacement during maintenance. Atmas Group

Technical Specifications

The official product documentation lists the following specifications:

Airflow: 150 / 180 / 200 m³/h
CO₂ filter capacity: >4800 L
Power supply: 230 V or 115 V AC
Electrical system: Single-phase
Manual backup: Optional

These specifications are provided directly by Atmas Group. Atmas Group

Application Areas

According to Atmas Group, the ARC CO2 product family is designed for:

Civil defence shelters
Protective bunkers
Industrial facilities
Protected underground spaces
Command and control centres
Other enclosed facilities operating in lock-up mode

The company also offers scalable CO₂ removal systems with different filter capacities for projects requiring higher air regeneration performance. Atmas Group

Integration with Shelter Life-Support Systems

Atmas Group identifies CO₂ scrubbers as part of a complete shelter air management solution that may include:

CBRN air filtration systems
Carbon monoxide (CO) removal systems
Oxygen (O₂) supply systems
Overpressure maintenance systems
Gas detection solutions
Air quality monitoring equipment

Together, these systems support life-support functions within protected facilities operating in isolation. Atmas Group

Conclusion

The ARC CO2 4800L is a professional carbon dioxide removal system developed by Atmas Group for civil defence shelters, bunkers and industrial protected facilities. According to the manufacturer, the system regenerates indoor air by removing carbon dioxide and carbon monoxide generated during occupancy, helping maintain safe atmospheric conditions in enclosed environments with limited or no external air supply. The unit features a replaceable filter with a capacity exceeding 4800 litres of CO₂, airflow options of 150, 180 and 200 m³/h, single-phase electrical operation and an optional manual backup system. Atmas Group