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

Modern civil defence shelters and protected facilities require reliable air regeneration systems capable of maintaining safe indoor conditions during periods when fresh air cannot be supplied from outside. The ARC CO2 6000L Modular CO₂ Scrubber is designed specifically for this purpose, providing controlled removal of carbon dioxide (CO₂) while supporting safe occupancy in enclosed environments. Product page:https://www.shelter-shop.com/product-page/afu-co2-6000l-ebl-180-ff-w

Modern civil defence shelters, bunkers, safe rooms and protected infrastructure require ventilation systems that can continue operating while protecting occupants from the effects of blast waves. According to the manufacturer, the BVNO 1000 Blast Valve is a normally open, dual-action automatic blast valve designed to protect ventilation openings by automatically closing when exposed to blast wave pressure while allowing normal airflow during standard operation. Official produ

Modern civil defence shelters, bunkers and protected facilities require ventilation systems that maintain normal airflow while automatically protecting the protected space during a blast event. The BVNO 2900 Blast Valve is a normally open, double-action blast valve designed to automatically close under blast wave pressure, protecting the interior against both the positive and negative phases of a blast wave. According to the manufacturer, the valve is intended for ventilation

Modern civil defence shelters, bunkers and protected facilities require ventilation systems capable of maintaining continuous airflow while automatically protecting occupants during blast events. The BVNO 2600 Blast Valve is a normally open, dual-action automatic blast valve designed to permit unrestricted airflow during normal operation and automatically close when exposed to blast wave pressure. According to the manufacturer, the valve protects the internal space from both

Modern civil defence shelters, safe rooms and protected facilities require ventilation components capable of maintaining normal airflow while automatically protecting the interior during blast events. According to the manufacturer, the BVNO 50 Blast Valve is a normally open, dual-action automatic blast valve designed to close automatically under blast wave pressure while allowing unrestricted airflow during standard operation. The valve is available either as a standard unit