China Suppliers Factory Galvanized Steel Frame Box Type Activated Carbon Filter with EN 779 Standard
Application Area
It is widely used across various industries and facilities:
Industrial Environmental Protection
VOC exhaust treatment in spraying, printing, and electronics manufacturing industries (often as a pre-treatment or core treatment unit). Process exhaust purification and deodorization in chemical and pharmaceutical plants. Fume hood exhaust treatment in laboratories.
Commercial & Civil Use
Oil fume odor purification in large commercial kitchens (requires integration with grease removal devices). Ventilation and deodorization in underground parking garages and sewage treatment stations. Odor control in food processing plants.
HVAC Systems
Fresh air purification in high-end office buildings, hospitals, museums, and airports to improve Indoor Air Quality (IAQ), removing outdoor ozone, vehicle exhaust, or indoor decoration pollution.
Special Locations
High-intensity odor control in places like airport smoking rooms, animal housing facilities, and waste transfer stations.
Filter Media Materials
We have 3 types of Activated Carbon Media to meet your specific needs:
Type A
Targeted for VOCs and Ozone, etc.
Type B
Targeted for Acidic Gases (SO2, NO2, H2S, HCL, HF, etc.)
Type C
Targeted for Alkaline Gases (NH3, Amines, etc.)
Activated carbon is the core of the filter, and its type and quality directly determine the filtration performance.
Key Features & Advantages
- High Efficiency & Broad-Spectrum: Effectively removes various VOCs, odors, acidic/alkaline gases, and some inorganic gases.
- Simple Structure: Easy to install, maintain, and replace.
- Moderate Air Resistance: A well-designed box balances adsorption efficiency with system pressure drop.
- Flexible Customization: Box dimensions, carbon bed thickness, activated carbon type, and fill volume can be customized based on air volume, pollutant concentration, and treatment requirements.
- Cost-Effective: A relatively economical option for treating medium-to-low concentration, high-volume exhaust gases.
Core Structure and Components
- Box (Casing): Typically made of carbon steel, stainless steel, or corrosion-resistant PP plastic to ensure structural strength and sealing. Usually a rectangular prism shape with flanges for easy connection to duct work (inlet and outlet).
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Air Flow Distribution & Support Structure:
Front Flow Distribution Screen/Plate: Ensures air flows evenly through the carbon bed, preventing "channeling" (air taking the path of least resistance) and maximizing the use of all carbon.
Support Screen/Plate: Located at the bottom of the box or between carbon layers, it prevents fine activated carbon particles from being carried out by the air stream and supports the weight of the carbon bed. - Access Door/Port: Facilitates the replacement of saturated activated carbon media.
- Pre-filtration (Optional but Recommended): Sometimes, a primary or medium-efficiency filter is installed upstream of the box to first remove dust and particles from the air stream. This prevents clogging of the activated carbon micro pores and significantly extends its service life.
Activated Carbon Media Layer
Media Types:
- Granular Carbon: Most common, strong adsorption capacity, adjustable packing density.
- Honeycomb Carbon (Block Carbon): Low-pressure drop, suitable for high air volume applications.
- Activated Carbon Fiber Felt/Cloth: Fast adsorption speed, often used in composite filter elements.
Carbon Type Selection: Chosen based on target pollutants (e.g., coconut shell carbon, coal-based carbon, impregnated carbon). For example, acid-impregnated carbon is specifically used to treat alkaline gases like ammonia and amines.
Technical Parameters
Remarks: (1) Initial resistance tolerance of ± 10% (2) Support customer size
Frequently Asked Questions
What are the main application areas for these carbon filters?
They are widely used in industrial environmental protection (VOC exhaust treatment, chemical/pharmaceutical plants), commercial & civil installations (kitchen oil fume, sewage stations, garages), HVAC systems (office buildings, hospitals, airports), and high-intensity odor control areas like airport smoking rooms and animal housing.
What types of carbon media do you offer and what do they target?
We offer three distinct media types: Type A for VOCs and Ozone; Type B for Acidic Gases (such as SO2, NO2, H2S, HCL, HF); and Type C for Alkaline Gases (including NH3 and Amines).
Why is a pre-filter recommended before the activated carbon box?
Installing a primary or medium-efficiency pre-filter upstream removes dust and airborne particles before they reach the carbon bed. This prevents the micro pores of the activated carbon from clogging, thereby maintaining high efficiency and significantly extending its service life.
Can the size and design of the activated carbon filter be customized?
Yes. We support customized sizes and configurations. The box dimensions, carbon bed thickness, activated carbon type, and fill volume can all be customized based on your system's air volume, target pollutant concentration, and treatment requirements.
What carbon media structures are available?
We provide Granular Carbon (strong adsorption, adjustable packing density), Honeycomb Carbon (low-pressure drop, ideal for high air volume), and Activated Carbon Fiber Felt/Cloth (fast adsorption speed for composite filter elements).