S.A.F.E.air Cabin Pressurisation Filtration Units can be fitted to any mining vehicle to provide ISO 23875 Compliant cabin pressurization and filtering.

The video below shows how a site has implemented S.A.F.E.air Cabin Filtration Units across their entire fleet.

S.A.F.E.air Cabin Pressuriser units not only provide a range of benefits for both employee safety and health, but also to operational considerations such as reduced maintenance cycles, shorter downtime and fewer breakdowns due to dust infiltration on equipment.

The cabin pressurization units work across a number of ways, as shown in the diagram below.

• The fresh air intake at A filters out heavy contaiminate dust particules through a cyclonic dust ejection system.
• Air moves through to B where the first stage pre-filter takes out further course dust particles.
• At C second stage HEPA filters remove finer sub micron particles from the air.
• Before supplying the filtered fresh air back into the cabin through the cabin pressuriser, a fan connected to the snorkel D draws air from the bottom rear of the cabin, extracting any contaminents that might have been brought into the cabin such as dust and dirt on occupent clothing, or contaminated air that might have entered the cabin as the employee entered the vehicle.
• This mix of air is then all filtered through a 3rd stage HEPA filter E to elimate remaining sub micron particles.
• Clean, HEPA filtered fresh air then enters the manifold connection F to the air conditioning unit G and enters the cabin via the air vents into the breathing zone for the cabin occupants.

QUICK REMOVAL OF RESIDUAL CONTAMINATION IN CABIN

Occupants entering into the cabin exposes the cabin to the outside dust. Once the cabin door is shut the S.A.F.E.air unit quickly removes the contaminated air via the suction pipe through to the HEPA filters to deliver clean air back into the cabin

INCREASED AIR CONDITIONING PERFORMANCE

There is increased air conditioning system reliability due to the integration of the vehicle’s air conditioning system with the S.A.F.E.air unit

HOSPITAL GRADE AIR

The HEPA filters provide hospital-grade air into the cabin for the occupant

LEAK PROOF SYSTEM

The suction line remains under positive pressure at all times. In the unlikely event of a hole occurring in the suction line, the air will still ow out the suction pipe and not back into the cabin due to the positive pressure

EXTENDED LIFETIME OF ELECTRONIC COMPONENTS IN CABIN

All of the cabin’s electronic components such as switches and connectors last longer because they are not exposed to dust. Also, the end of shift cleaning time is greatly reduced

CONSISTENT MINIMUM 100Pa PRESSURE

The S.A.F.E.air system delivers a constant minimum required pressure of 100Pa. The air conditioner fan speed knob controls the required pressure in the cab to 100Pa, although the industry standard is 50Pa. Should there be any leakage due to an open window(s), the fan speed can be increased by the driver to achieve minimum pressure required in the cab

REDUCED CO₂ LEVEL IN CABIN

When a new S.A.F.E.air unit is fitted to a mine vehicle, the cab is deliberately not entirely sealed. Purged air is exchanged for HEPA clean, fresh air resulting in lower levels of CO₂ in the cabin

CLEAN EVAPORATIVE COIL

The evaporative coil of the vehicle’s air conditioner remains clean, as it is not exposed to dust due to integration with the S.A.F.E.air unit

INTERACTIVE TOUCH SCREEN PANEL

An interactive touch screen panel mounted inside the cab with password-protected settings and alarm set to minimum 50Pa to alert the driver to take corrective action.

EXCEEDS ISO 23875 STANDARD

S.A.F.E.air units are certified ISO 23875 Compliant and Freudendberg HEPA filters remove smaller particulate matter than the minimum specified in the standard, providing cabin occupants with cleaner air.

All units are certified using the DOP testing procedure by SW Hart & Co.

This is the same level of testing that is used in medical facilities, which test down to 0.3 microns

Learn about the CO2 levels and associated health effects

For more information on S.A.F.E.air Cabin Air filtration please contact Freudenberg Filtration Technologies

S.A.F.E.air Cabin Filtration | S.A.F.E.air Room Filtration | S.A.F.E.air Cabinet Filtration

Freudenberg Filtration Technologies
S.A.F.E.air Filtration and Pressurisation for Driver Cabins of all heavy equipment.