Introduction The EBL 300 High-Pressure Ventilation Blower is a radial blower designed for use in CBRN filtration systems and other ventilation and air filtration applications. According to the product description, it generates airflow at high static pressure, allowing air to move through ducts, filters, valves and other ventilation system components. Atmas Group The EBL 300 is designed for applications where airflow must be maintained against the resistance created by filtrat

Introduction The DU-III Blast & Gastight Door is a protective shelter door designed to withstand blast pressure exceeding 440 kPa (4.4 bar) and provide gas tightness. According to the product information published by Atmas Group, DU-III doors are designed for civil defence shelters and other protected facilities. They are available in single-leaf and double-leaf configurations. Atmas Group The door leaf is constructed from reinforced beams with steel cover panels. The design

Introduction The BVNC 40 Overpressure Blast Valve is a normally closed valve designed to maintain and control differential pressure levels inside a shelter while protecting the internal space against external blast-wave pressure. According to the product description, the valve operates automatically. When positive pressure inside the shelter reaches a predefined overpressure level, the valve releases air from the protected space. This function supports controlled air release

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, 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