China Suppliers Factory Cardboard Frame Activated Carbon Fiber Filter - EN 779 Compliant, Multi-Thickness Options
- ✅ Widely used in installations where space is tight and ventilation and air conditioning systems require odor removal of gaseous pollutants.
- ✅ Airports, high-grade hotels, office buildings, shopping malls, and other commercial and residential buildings.
- ✅ Museums, libraries, art galleries, and other air conditioning systems.
- ✅ Comfort air conditioning system optimization filters.
We have 3 types of Carbon Activated Media to meet your needs:
- 🟦 Type A: VOC And Ozone, Etc.
- 🟨 Type B: Acidic Gases (SO₂, NO₂, H₂S, HCL, HF, Etc.)
- 🟩 Type C: Alkaline Gases (NH₃, Amines, Etc.)
Activated carbon is the core of the filter, and its type and quality directly determine the filtration performance.
Material Source:
The most common type, made from anthracite or bituminous coal. It has high strength and relatively low cost, making it suitable for high air volume applications and the removal of general odors and organic compounds.
Made from coconut shells, wood chips, etc. It typically has a more developed microporous structure, offering superior adsorption performance for low-concentration, small-molecule VOC and odors. Coconut shell carbon exhibits excellent performance but comes at a higher cost.
Examples include peach shells and jujube shells. Its performance falls between coal-based and wood-based activated carbon.
The most commonly used form, where activated carbon is crushed into specific particle sizes (e.g., 4–8 mesh) and filled into V-shaped filter beds. Its advantages include a large specific surface area and high adsorption capacity.
Produced in the form of felt or cloth, which can be folded into a V-shape. It offers fast adsorption rates with low resistance. However, it is more expensive and may have a lower adsorption capacity per unit volume compared to granular carbon. It is often used in specialized applications.
The efficiency depends on the carbon content, normally ranging from 2.0 to 4.0, and they can be selected based on specific requirements. The rational selection of filter efficiency and face velocity contributes to comprehensive economic benefits.
As dust accumulates on the filter media, the resistance increases. When the resistance reaches an unreasonable level, the filter must be discarded. Sometimes, excessive resistance can cause previously captured dust to become dislodged and re-enter the airflow; when this risk arises, the filter should also be replaced.
The resistance of a filter increases with higher airflow rates. By increasing the surface area of the filter media, the relative velocity of air passing through the filter can be reduced, thereby decreasing the resistance.
Remarks: (1) Initial resistance tolerance of ±10% (2) Support customer size