The CastellexAir 390 life support system (LSS) is intended to provide a complete filtration solution in the event of nuclear, biological, and chemical (NBC) attack. Its three-stage filtering system guarantees 99.99% efficiency for the filtration of particles down to 0.3 microns (micrometres), which are captured and stored in a hermetically-sealed unit where they remain until they can safely be disposed of. This NBC system incorporates two blast valves for optimal protection (123psi) from sudden changes in air pressure, often caused by explosions. The double-failsafe power design keeps the unit operating even in the event of both mains and battery failure: a third manual power backup ensures the system continues to filter and supply up to 150 m3/h of fresh air to as many as 24 people in a panic room or other closed environment. Two USB chargers are fitted to the system to keep communications devices such as smartphones powered. This nuclear, biological, and chemical filter unit is power-rated at a respectable 100 W, which are consumed via the supplied 110-240 V AC power cord, heavy-duty battery, or backup power supply. Operational noise is a up to 73 dBA – thanks to sound insulation. The Castellex Air 390 LSS is a positive pressure filtration system: it slightly elevates the air pressure in the protected room to prevent harmful agents from entering via the normal action of airflow from outside. And its failsafe design means that a secondary ventilator will come into play if the first is compromised. This underground bunker air filtration system is also suited for installation in cars, yachts, trucks, and other mobile real estate. Fit in boats at risk of entry to unprotected waters, war zones, or high pollution areas. And install in armored cars, or at-risk work vehicles that are frequently required to operate in inhospitable environments. Additionally, the CastellexAir 390 NBC system is suitable for home, commercial, or civic use where vulnerable people are in need of protection from elevated levels of exhaust gases and other common forms of pollution. Included are three filters—a pre filter, a carbon filter with special impregnation, and a HEPA filter. The carbon filter is capable of cleaning all known warfare gases from the air, in addition to radioactive iodine, iodine organic compounds, volatile organic gases, acidic gases, and biological agents. The unit is also supplied with two blast valve fixing sets, an overpressure valve to regulate room pressure, NBC pipe, a powerful backup battery, a power unit, and a power cord. Available in white or black. Constructed in the UK from high-quality components. Attractive modern design.


Collective filtration system intended for up to 24 * people in panic room The system provide 150 m3/h of fresh air High blast protection (123 PSI) Power backup system for operating without mains Manual power backup system if battery discharge or failure event “Castellex Air 390 protect you from all known warfare gases and also Biological weapons/ contamination, Radioactive contamination, Radioactive Iodine and Iodine Organic Compounds, Acidic gases, Volatile Organic Compounds (VOC’s) and more”
Air flow up to 150 m3/h
Power consumption 100W
Power supply 110-240 VAC
Frequency 50-60 Hz
Hepa filter H14
Pre-filter F7
System efficiency 99.99%
Noise level dB A up to 73
Color design white or black
2 x USB charger Powerful battery pack Double fail-safe power backup Fail-safe design Sound insulation


Castellex Air 390 unit Pre-filter Hepa filter Carbon filter 2 x Blast valve Overpressure valve 2 x Blast valve fixing set Powerful backup battery 2 x USB charger NBC pipe 3m Power unit Power cord  

Castellex Air 390

Complete NBC air filtration station with filters preinstalled.

Designed to provide fresh air to panic rooms, bomb shelters, nuclear fallout shelters, and domestic and commercial environments subject to extremely heavy pollution, the Castellex Air 390 life support system is fitted with a top-graded H14 HEPA filter, an F7-rated pre filter and a carbon filter.


£7,250.00 + VAT

Out of stock

Additional products

  • Filter pack 300(500) series (pre filter, hepa and carbon filters)

    £2,470.00 + VAT
  • NBC pipe set 125

    £665.00 + VAT
  • Battery replacement M

    £479.00 + VAT
  • Blast valve gasket set 125

    £139.00 + VAT
  • O2 indicator

    £990.00 + VAT
  • Wall fixing set Air300 series

    £339.00 + VAT
  • Blast Protected Overpressure valve 125

    £1,690.00 + VAT
  • Blast valve fixing set

    £139.00 + VAT
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Castellex has vast experience in designing and manufacturing NBC (Nuclear Biological Chemical) Air Filtration/ Air supply stations for different applications. It’s widely used across the Globe by military, hospitals, private individuals. No nuclear bunker or survival shelter is completed without the state of the art Castellex NBC air filtration station.
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