HEPA-Grade CBRN Air Filtration Installation in Great Falls, Montana

Common Challenges

• Contaminated air seeps through cracks without positive pressure

  Bunkers without overpressure blowers let chemical vapors and radioactive particles infiltrate through ventilation gaps and foundation cracks during events.

• Single-stage filters miss chemical vapors and fine particles

  HEPA-only systems capture particles but let nerve agents and chemical vapors pass through, while carbon-only filters miss radioactive dust.

• Cold Montana winters freeze condensation in filter housings

  Great Falls' cold winters cause moisture buildup in uninsulated filter banks, reducing airflow and creating ice blockages that compromise filtration.

How We Help

• HEPA H13 filters capture 99.97% of 0.3-micron particles

  Multi-stage filter banks with HEPA H13 elements remove radioactive dust, biological agents, and fine particulates down to 0.3 microns per NBC specifications.

• Activated carbon banks remove chemical vapors and nerve agents

  Granular activated carbon filters with 500+ m²/g surface area absorb chemical warfare agents, industrial toxins, and volatile organic compounds.

• Overpressure blowers maintain 0.05 to 0.10 inches water column

  Variable-speed blowers create positive pressure that prevents contaminated air infiltration, with pressure gauges for real-time monitoring.

• Insulated filter housings prevent freeze damage in Great Falls winters

  Heated filter enclosures with condensate drains maintain airflow during cold Montana winters, preventing ice blockages and moisture buildup.

• Filter change airlocks allow safe replacement during events

  Dual-chamber filter housings with isolation valves let you swap HEPA and carbon filters without exposing bunker occupants to contaminated air.

• HEPA H13 filters capture 99.97% of 0.3-micron particles

  Multi-stage filter banks with HEPA H13 elements remove radioactive dust, biological agents, and fine particulates down to 0.3 microns per NBC specifications.

• Activated carbon banks remove chemical vapors and nerve agents

  Granular activated carbon filters with 500+ m²/g surface area absorb chemical warfare agents, industrial toxins, and volatile organic compounds.

• Overpressure blowers maintain 0.05 to 0.10 inches water column

  Variable-speed blowers create positive pressure that prevents contaminated air infiltration, with pressure gauges for real-time monitoring.

• Insulated filter housings prevent freeze damage in Great Falls winters

  Heated filter enclosures with condensate drains maintain airflow during cold Montana winters, preventing ice blockages and moisture buildup.

• Filter change airlocks allow safe replacement during events

  Dual-chamber filter housings with isolation valves let you swap HEPA and carbon filters without exposing bunker occupants to contaminated air.