Introduction The AFU 36 NBC / CBRN filter is an advanced filtration component designed for use in air filtration and ventilation systems installed in safe rooms, residential shelters, bunkers, containers and other protected spaces. NBC / CBRN refers to nuclear, biological and chemical threats, with CBRN explicitly covering chemical, biological, radiological and nuclear hazards. The AFU 36 is designed to operate as part of a CBRN filtration system, providing a dedicated filtra

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

The AFU 1200 is an advanced NBC / CBRN (Chemical, Biological, Radiological and Nuclear) filter designed for use as part of air filtration and ventilation systems installed in safe rooms, civil defence shelters, bunkers, industrial facilities and other protected environments. According to the product information, the AFU 1200 is a standard filter for use in CBRN filtration systems. It can also be integrated into other types of compatible systems or used to replace existing fil

Ventilation openings are an important part of protected facilities because they must allow the movement of air while maintaining the required level of protection against external hazards. The BVNO 1000 Blast Valve is a normally open, dual-action automatic valve designed for ventilation systems in protected spaces. According to Shelter Shop, the valve allows air to move in and out of the protected space during normal operation and automatically closes the air opening when expo

The ATM HS-1 is a shelter hatch designed for use in protected spaces. According to the product information provided by Shelter Shop, the hatch is designed to meet and, in some parameters, exceed the Finnish norms for S1 shelters. The ATM HS-1 combines blast resistance with gas-tight sealing and is designed with an inward-opening configuration. Its construction and locking system are intended for installation in shelter structures requiring protection against blast-wave pressu

The ATM-FB4-RC4 Security Door is a multi-performance protective door designed to provide resistance against ballistic threats, burglary, blast effects and air leakage. According to the product specifications published by Shelter Shop, the door combines several certified performance classifications in a single security-door solution. Shelter Shop Bullet Resistance — EN 1522 Class FB4 The ATM-FB4-RC4 is specified as a bullet-resistant door according to EN 1522 Class FB4. This c

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 require ventilation systems capable of maintaining stable airflow under both normal and emergency operating conditions. The EBL 50 High-Pressure Ventilation Blower with Manual Backup is a radial ventilation blower developed for use in CBRN filtration systems and other air filtration applications where high static pressure is required. According to the manufacturer, the blower is designed to move air efficiently through ducts, filters, blast valve

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

Reliable ventilation is one of the most important engineering systems in civil defence shelters, bunkers and protected facilities. The EBL 36 High-Pressure Ventilation Blower is a compact radial blower designed for ventilation and air filtration applications where stable airflow and high static pressure are required. According to the manufacturer, the unit is tested and certified for professional use and is compatible with CBRN filtration and ventilation systems. Atmas Group

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

Modern civil defence shelters and protected facilities require entrance systems capable of maintaining an airtight barrier between the protected interior and the external environment. In vestibule configurations, gastight doors serve as a critical engineering component by preventing the penetration of hazardous substances while preserving the integrity of the shelter envelope. The DU-IV Gastight Door is designed specifically for this purpose and is available through the offic

AFU 50 is an advanced NBC/CBRN filter designed for integration into air filtration and ventilation systems used in safe rooms, civil defence shelters, bunkers, industrial facilities and other protected environments. It can also be integrated into other compatible filtration systems or used to replace an existing filter. Atmas Group The AFU 50 is designed for a nominal airflow of 50 m³/h, making it a compact filtration unit for systems where a controlled and relatively low air

The SU-III RWRT is a top-opening blast and gastight shelter hatch designed for protected facilities and civil defence shelters. According to the published product description, the hatch is designed for blast pressure of up to 440 kPa (4.4 bar) and is intended for horizontal, top-opening installation. Atmas Group The product is available with different clear opening dimensions and can be installed either during new construction or as a retrofit solution. SU-III RWRT — product

The DPG-A Differential Pressure Gauge is a mechanical instrument designed to measure and monitor differential pressure in protected shelter environments. According to the product description, the gauge is intended for monitoring the pressure difference between shelter compartments, such as the main shelter chamber and an airlock, as well as between a protected area and the outside environment. DPG-A Differential Pressure Gauge — Shelter Shop Differential pressure monitoring i