Activated Carbon Filter
Remove Odours and Harmful Air Particles
Hover over the image to see the dual-stage cartridge
Activated Carbon + HEPA Filter
Remove Odours and Harmful Air Particles
Connected to a BreatheSafe pressuriser, this dual-stage cartridge combines HEPA H13 filtration with KOH-impregnated activated carbon to remove fine dust, VOCs, diesel fumes, and acidic gases.
Optimised for low airflow resistance and high adsorption efficiency, it integrates seamlessly with BreatheSafe pressurisation systems and is easily replaced during routine maintenance.
Applications
Operator Cabin Pressurisation
Clean Room Pressurisation
Gallery
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Features
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Double Layered Filter Cartridge
Impregnated activated carbon removes gases while a HEPA panel filter captures fine particles, including carbon dust.
Rapid Filter Replacement
The sealed, latch-secured cartridge allows fast and consistent filter replacement.
Designed for Extreme Conditions
Engineered to maintain gas adsorption performance in high-temperature and dense-gas environments.
Specification
| Parameter | Value |
|---|---|
| Length | 355.15 mm |
| Width | 305 mm |
| Depth | 152.4 mm |
| Carbon Weight | 2.7 kg |
| Cartridge Weight | 6.25 kg |
| Gas Filter Type | Honeycomb Activated Carbon Monolith, Impregnated with 15% KOH |
| Carbon Impregnation | KOH impregnation enhances absorptivity of acidic compounds |
| Suitable for Removing | SO2, H2S, H2SO4, VOCs, NHMCs, Diesel Fumes etc. |
| Maximum Temperature | 80°C (176°F) |
Frequently Asked Questions
What is an activated carbon filter and why is it needed?
An activated carbon filter is used in industrial air filtration systems to remove gases, fumes, and chemical contaminants that cannot be captured by HEPA filters.
When connected to a cabin pressurisation system or a clean room pressurisation system, an activated carbon cartridge provides an additional filtration stage to remove:
- Diesel fumes and exhaust gases
- Volatile organic compounds (VOCs)
- Odours and acidic gases
This is critical in mining and industrial environments where airborne hazards are not limited to dust. While HEPA filtration removes particles, an activated carbon filter is required to control gas-phase contaminants and improve overall air quality.
How does an activated carbon filter work?
An activated carbon filter works through a process called adsorption (or often described as “neutralising” odours), where gas molecules attach to the surface of the carbon material.
Activated carbon has an extremely high surface area with millions of microscopic pores, allowing it to trap and hold gases, fumes, and chemical vapours as air passes through the filter.
Unlike HEPA filters, which physically capture particles, activated carbon filters are designed specifically to remove gaseous contaminants from the air stream.
What contaminants can an activated carbon filter remove?
An activated carbon filter is highly effective at removing:
- Diesel fumes and exhaust gases
- Volatile organic compounds (VOCs)
- Odours and smoke
- Acidic gases and chemical vapours
These contaminants are commonly found in industrial, mining, and heavy equipment environments and cannot be removed by standard particulate filters alone.
Do I need an activated carbon filter if I already have a HEPA system?
It depends on your working environment. In applications such as landfills, underground mining, and smelters, where hazardous gases are present, it is strongly recommended to use an activated carbon filter alongside a HEPA system.
A HEPA filter or MERV filter is designed to remove airborne particles such as dust, respirable silica, and fine particulate. However, these filters do not remove gases or fumes.
An activated carbon filter is required to remove:
- Diesel exhaust gases
- Sulphur dioxide (SO₂)
- Volatile organic compounds (VOCs)
- Chemical vapours and odours
For machines operating in environments with both particulate and gas-phase contaminants, a HEPA filtration system and an activated carbon filter must be used together in a cabin pressurisation system to provide complete air filtration and effective operator protection.
How often do I need to replace activated carbon filters?
The replacement interval for an activated carbon filter depends on operating conditions, contaminant levels, and exposure to gases, fumes, and VOCs. In high-demand environments such as mining or heavy equipment operation, the carbon media can become saturated more quickly.
As a general guideline, follow the site’s maintenance recommendations or replace the activated carbon cartridge at approximately 500 operating hours, in line with BreatheSafe recommendations.
Unlike HEPA filters, which load with dust, activated carbon filters become less effective as their adsorption capacity is exhausted, even if there is no visible blockage. Regular replacement is required to maintain effective removal of diesel fumes, chemical vapours, and odours in cabin pressurisation systems.
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