TL HEPA Air Pressuriser

Ensure Clean Air and Safety in Dusty Environments

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TL HEPA Air Pressuriser

Ensure Clean Air and Safety in Dusty Environments

Engineered for high-performance cabin pressurisation, it delivers clean, HEPA-filtered air while maintaining stable positive pressure in the toughest environments.

With a variable speed motor and full integration with any BreatheSafe controller, it enables intelligent pressure control, optimising airflow for maximum filtration efficiency and consistent operator protection across a wide range of machines.

Available in 12 V and 24 V configurations

Data Sheet Animation

Applications

Operator Cabin Pressurisation

Electrical Enclosure Pressurisation

Clean Room Pressurisation

Gallery

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Komatsu Wheel Loader WA250PZ

Caterpillar Articulated Truck 745

Liebherr Mining Truck T264

Hitachi Excavator ZX135US-5

Dragline Excavator

Epiroc SmartROC Drill Rig T40

Hyster Forklift H12XM-6

Hyundai Wheel Loader HL760-9

ASC Eureka Sweeper M8

Bomag Compactor BC772RB2

Caterpillar 796AC Electrical Cabinet

Komatsu 830E Electrical Cabinet

Caterpillar 793F Electrical Cabinet

Komatsu 830E Arc Chute Cabinet

Dragline Electrical Cabinet

Caterpillar 6020B Electrical Cabinet

TBM Control Room (Tunnelling)

Container Clean Room

Control Room (Recycling)

TBM Break Room (Tunnelling)

Crusher Room (Mining)

Break Room (Mining)

Features

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Superior Air Precleaner

Uses centrifugal force to remove large particles and debris, reducing the load on the HEPA filter and extending its lifespan.

HEPA H14 Filtration

Removing 99.995% of airborne particles at 0.3 microns, ensuring exceptionally clean air.

Twist-Lock Filter

Quick and secure filter replacement mechanism for easy maintenance and minimal downtime.

Variable Speed Motor

Adjusts automatically to maintain positive pressure while minimising filter load and noise, enhancing operator comfort.

Automatic Pressure Control

Automatically adjusts fan speed to maintain cabin pressure. Constantly high motor output can be an indicator that filter replacement is needed.

Ingress Protection (IP) 66 Rated

Built to withstand dust, water, and extreme conditions for reliable performance in rugged industries.

Specification

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Specification
Components

Parameter	Value
Length	501 mm
Height	264 mm
Width	264 mm
Weight	5 kg
Voltage	Min: 22 V; Typ: 24 V; Max: 30 V
Current	Typ: 1-10 A; Max: 11 A

TL4-High-Pressure-Pressuriser-CAD-Drawing

Part Number	Description
200002	12 V / 24 V DC Brushless VSD Motor
200004	Pre-cleaner Hood & Rotor Assembly
200005	Pre-cleaner Injector Ring
200006	TL Fan Blade
200007	TL Nose Cone / Pre-cleaner
200008	TL Motor Housing
200009	TL Filter Housing
500000	HEPA H14 Filter

Frequently Asked Questions

What does a HEPA filter mean and how efficient is HEPA H14?

A HEPA filter (High Efficiency Particulate Air filter) is a high-efficiency air filtration standard designed to capture very fine airborne particles. HEPA filtration is widely used in industrial air filtration systems and cabin pressurisation systems to protect operators from harmful contaminants.

HEPA filters are tested at 0.3 microns, which is the most penetrating particle size. They are highly effective at removing respirable silica dust, fine particulate (PM2.5), diesel particulate matter, and airborne contaminants commonly found in mining and heavy equipment environments.

HEPA H14 is a higher-grade HEPA filter with a filtration efficiency of ≥99.995% at 0.3 microns, compared to H13 at ≥99.95% at 0.3 microns.

H14 HEPA filtration is recommended for:

Mining and high-dust environments
Applications with respirable silica exposure
Operator cabin pressurisation systems require higher protection
Situations where air quality standards, such as ISO 23875, Workplace Exposure Limits or RS20, must be achieved

H13 HEPA filters may be suitable for lower-risk environments. However, H14 provides a higher level of filtration efficiency and is preferred for critical industrial air filtration applications where maximum protection is required.

MERV vs HEPA: what’s the difference?

MERV (Minimum Efficiency Reporting Value) and HEPA (High Efficiency Particulate Air) are both air filter rating systems, but they apply to different levels of filtration performance.

MERV ratings (typically MERV 1–16, graded by the American Society of Heating, Refrigerating and Air-Conditioning Engineers) are used for general HVAC and ventilation filters. Higher MERV ratings capture smaller particles, but even the highest MERV filters are designed for comfort and general air quality, not hazardous dust control.

HEPA filters (graded by ISO and government agencies) operate at a much higher efficiency. A HEPA filter tested per EN1822 captures ≥99.95% (H13) or ≥99.995% (H14) of particles at 0.3 microns MPPS, including respirable silica dust, fine particulate (PM2.5), and diesel particulate.

In industrial air filtration systems and cabin pressurisation systems, HEPA filtration is required where there is exposure to fine or hazardous airborne particles. MERV-rated filters may be used as pre-filters, but they are not sufficient on their own for high-risk environments. When talking about respirable dust, even the lowest HEPA grade filter has a higher efficiency than MERV 16 filters.

For applications such as mining, heavy equipment cabins, and operator protection systems, HEPA filtration provides the level of performance needed to maintain safe air quality.

What particles can HEPA filters remove?

HEPA filters are designed to remove a wide range of fine and hazardous airborne particles commonly found in industrial and mining environments.

These include:

Respirable silica dust
Coal dust and mineral mine dust
Diesel particulate matter (DPM)
Grain dust and wood dust
Fibrous materials such as asbestos and nuisance dust
Mould, smoke, and airborne contaminants

BreatheSafe HEPA filters are tested per EN1822 at 0.3 microns (MPPS). At H14 grade, it can achieve up to 99.995% efficiency, making it highly effective at capturing the particles most harmful to operator health in cabin pressurisation systems.

Why do I need a HEPA pressuriser and how does it work?

A HEPA pressuriser is the key product of cabin pressurisation systems to protect operators from respirable silica dust, fine particulate (PM2.5), and airborne contaminants commonly found in mining and industrial environments.

It works by drawing in external air, passing it through a HEPA filter, and supplying clean air into the cabin while maintaining positive pressure. This positive pressure prevents unfiltered air, dust, and contaminants from entering through gaps, doors, or leaks.

By combining HEPA filtration with controlled airflow, a HEPA pressuriser ensures that only clean, filtered air enters the cabin, making it a critical component in industrial air filtration systems where operator health and air quality compliance are required.

Why do I need a pressuriser with variable speed brushless motor?

A variable speed or brushless motor allows the pressuriser to adjust airflow based on operating conditions, such as filter loading, changes in cabin pressure, and environmental dust levels.

This provides: