Air Filtration & NBC Protection Systems
CO₂ Filtration System
Control the build-up of carbon dioxide in enclosed spaces to improve air quality.
How it works
In a sealed room, people breathe out carbon dioxide and its concentration rises. A CO₂ filtration system, or scrubber, passes room air over a chemical absorbent that binds the carbon dioxide and returns cleaner air to the room. It allows a sealed shelter to stay closed for longer without fresh-air supply.
Typical applications
- Sealed shelters and refuges
- Rooms that must stay closed for long periods
- Closed-environment applications
Why does CO₂ matter in a sealed room?
Each person adds carbon dioxide as they breathe. Occupational limits are commonly set at 5,000 ppm (0.5 %) as an 8-hour average, and higher levels cause headaches and poor concentration and become dangerous. The number of people, the room volume and the time sealed decide how much scrubbing is needed.
Technical specifications, protection levels and test reports are provided per project. Contact our engineers for details.
Planning a protected facility?
Tell us about your site, threat scenario and timeline. Our engineers will respond with the right solution.