Cabin Pressurisation

cabin prees tiles mining

cabin prees tiles foundry

cabin prees tiles farm

 HEPA filtration coal iron

Clean filtered air (HEPA) + positive pressure inside the cabin = Polluted external air cannot enter!

Breathesafe aims to protect operators of Vehicle Cabin’s found in these working environments.

Hazardous Airborne particles and aerosols include: coal dust, crystalline silica(RCS), S02, HF, H2S04, DPM, pesticides, fibres & various land gases.

Applications include the following:

  • Silica (RCS)
  • Asbestos
  • Respirable dust
  • Pollen
  • Mould
  • Diesel particulate matter
  • Vapours
  • Gas / Aerosol
  • Fibres
  • Coal dust
  • Volatile organic compound
  • Virus & bacteria
  • Pesticides
  • Dusts Nos (Not otherwise specified) Please contact us for any other application.

In the following industries:

  • Agriculture
  • Construction
  • Foundry
  • Forestry
  • Quarry
  • Mining
  • Military
  • Waste / Land fill

Principles of cabin pressurisation summary:

  • Contaminants enter the pre-cleaner to remove over 90% of coarse particulate which also extends the service life-cycle of the HEPA filter.

  • Next process is primary HEPA air filter which captures respirable particles before it passes through the pressurising fan.
  • Then positive pressure high quality filtered air is delivered and recirculated by the HVAC system inside the enclosed vehicles' cabin.
  • A HEPA return air filter should be fitted to deliver the highest protection factor which is to traps contaminants from the operators' clothes or shoes.

  • The cabin environment requires sealing so that it can maintain positive pressure at the pre-set point for the service life of the machine.
  • Pressure display is required for the operator to know that the system is working properly. (Visual and audio alerts)
  • The operator must keep windows and doors closed always.

Essentially, the air going through to the HVAC system is blended fresh air with recirculated air. Ideally, in a two-stage process of filtration (stage one is fresh air & stage two is return air filter for recirculation) both with HEPA media to then achieve "clean room standard" with respirable dust control. This is a system that delivers high protection factors for the operator with the added benefit of extending the service life of the HVAC system by eliminating internal dust build up.


 Click to view Breathe-Safe best practice advice:




land waste