CBRN Air Filtration Installation in Montana

Common Challenges

• Contaminated air seeps through cracks without positive pressure

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

• Single-stage filters miss chemical vapors or fine particles

  HEPA-only systems capture particles but let nerve agents and toxic gases pass through. Carbon-only filters miss radioactive dust and biological aerosols.

• Filter changes during contamination events risk exposure

  Swapping clogged filters without airlocks or protocols exposes occupants to the contaminated air the system was blocking.

How We Help

• HEPA H13 filters capture 99.97% of particles down to 0.3 microns

  Filter banks remove radioactive dust, biological aerosols, and smoke particles that cause respiratory damage or radiation exposure.

• Activated carbon filters absorb chemical vapors and nerve agents

  Carbon banks remove volatile organic compounds, chlorine gas, and organophosphate nerve agents that HEPA filters can't capture.

• Overpressure blowers maintain positive pressure to block infiltration

  Blowers sized for bunker volume create 0.5-1.0 inches of water column pressure, preventing contaminated air from entering through cracks or ventilation.

• Filter change airlocks and protocols prevent exposure during swaps

  Pre-filter chambers and tested procedures let you replace clogged filters without shutting down the system or exposing occupants to outside air.

• Airflow and pressure testing verify system performance before handoff

  We measure CFM output, pressure differential, and filter efficiency to confirm the system meets NBC specifications for your bunker volume.

• HEPA H13 filters capture 99.97% of particles down to 0.3 microns

  Filter banks remove radioactive dust, biological aerosols, and smoke particles that cause respiratory damage or radiation exposure.

• Activated carbon filters absorb chemical vapors and nerve agents

  Carbon banks remove volatile organic compounds, chlorine gas, and organophosphate nerve agents that HEPA filters can't capture.

• Overpressure blowers maintain positive pressure to block infiltration

  Blowers sized for bunker volume create 0.5-1.0 inches of water column pressure, preventing contaminated air from entering through cracks or ventilation.

• Filter change airlocks and protocols prevent exposure during swaps

  Pre-filter chambers and tested procedures let you replace clogged filters without shutting down the system or exposing occupants to outside air.

• Airflow and pressure testing verify system performance before handoff

  We measure CFM output, pressure differential, and filter efficiency to confirm the system meets NBC specifications for your bunker volume.