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Experts in Shelters & Protective Technologies
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NBC / CBRN & Carbon Combined Filters

Professional line of CBRN filters, designed for air filtration systems  with nominal air flow from 36 and up to 1800 m3/h (CMH)

Tested and certified for requirements of SI 4570 and comply with requirements of other international standards.

Approved by the Civil Defence Command of Israel and other international organizations and installed in tens of thousands of shelters around the world.

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AFU 36 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 36 m3/h

  • Pressure drop @ nominal: 460 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 7 kg

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AFU 180 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 180 m3/h

  • Pressure drop @ nominal: 500 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 72 kg

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AFU 240 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 240 m3/h

  • Pressure drop @ nominal: 500 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 84 kg

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AFU 300 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 300 m3/h

  • Pressure drop @ nominal: 500 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 92 kg

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AFU 450 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 450 m3/h

  • Pressure drop @ nominal: 500 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 120 kg

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AFU 600 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 600 m3/h

  • Pressure drop @ nominal: 500 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 145 kg

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AFU 900 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 900 m3/h

  • Pressure drop @ nominal: 1000 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 195 kg

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AFU 1200 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 1200 m3/h

  • Pressure drop @ nominal: 1000 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 236 kg

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AFU 1800 - CBRN Filter

Tested and certified for SI 4570 by the Standards Institution of Israel and comply with other international standards.

  • Nominal airflow: 1800 m3/h

  • Pressure drop @ nominal: 460 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 310 kg

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AFU RC 100 - CBRN Filter

Designed to fit technical requirements of Central Eastern Europe shelter norms

  • Nominal airflow: 100 / 200 m3/h

  • Pressure drop @ nominal: 180 / 350 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 30 ± 5 kg

  • Installation options in column: 1:1, 2:1, 3:1

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AFU RC 300 - CBRN Filter

Designed to fit technical requirements of Central Eastern Europe shelter norms

  • Nominal airflow: 300 m3/h

  • Pressure drop @ nominal: 800 Pa

  • Mechanical filter efficiency: ≥99.995 %

  • Filter weight: 85 ± 5 kg

  • Installation options in column: 1:1, 2:1, 3:1

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ES-1 - CBRN Filter

Designed to fit technical requirements of Finnish shelter norms

  • Nominal airflow: 150 m3/h

  • Mechanical filter efficiency: ≥99.995 %

AFU (Air Filtration Unit) Series of Advanced CBRN Filters

CBRN filters are commonly part of air filtration and ventilation systems or air handling units in civil defence shelters, bunkers, industrial facilities, security structures and more. 
Atmas offers a wide range of filters designed for a specific or a wide spectrum of purposes like filtering the air nuclear, biological and chemical (NBC) materials and particles, toxic industrial chemicals (TIC), dust and more.

AFU series includes a wide range of filters which comply with technical requirements of different international civil defence standards and can be installed as part of a air filtration units in shelters and protected areas.

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CBRN filter (Chemical, Biological, Radiological & Nuclear) usually consists several layers of filtration for different type of threats:

  • HEPA / ULPA filter layer – used for mechanical filtration of airborne biological particles like viruses and bacteria and more

  • Activated carbon layer used for adsorption of war gases and toxic industrial chemicals

  • In some filters coarse dust filter (pre-filter) can be part of the CBRN filter.

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