
HVAC Filter Products
Introduction:
The filter system is employed to clean and purify the air in your room and protect your HVAC system. Your HVAC air filter is easy to forget because the system is usually out of sight. But it plays an important role.
We provide the best air filter solutions with our wide range products such as Fresh air system air purification box, dust filtration low-noise purification box, fresh air system filter element, household air filter element, combined purification unit, direct expansion purification unit, purification unit, high-efficiency air outlet, pre-filter, panel filter, bag/pocket filter, medium-efficiency filter, activated carbon filter, etc.

Panel Filter:
As a basic filter, the panel filter is a flat air filter used in heating and cooling systems. It helps protect the system by catching dust, dirt, and small particles as air passes through. Our panel filters are a good choice because they are affordable, easy to replace, and can be used in homes and commercial buildings to keep the HVAC system clean and running smoothly.
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Filter Size
The size is totally customized such as 20×20×1 inch or 595×595×25 mm. -
Filter Material
Synthetic fiber, polyester, fiberglass, or non-woven media. -
Frame Material
Cardboard, galvanized steel, or aluminum. -
Efficiency Rating (MERV Rating)
MERV 4–8 for standard panel filters.

Pocket Filter:
The pocket filter or bag filter, is a high-capacity air filter used in HVAC systems. It has multiple “pockets” or bags that increase the surface area, allowing it to capture more dust, pollen, and fine particles. Pocket filters provide higher filtration efficiency than standard panel filters and are commonly used in commercial buildings, hospitals, factories, and clean ventilation systems to keep indoor air clean and protect HVAC equipment.
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Filter Size
Totally customized, such as 592×592 mm, with different pocket depths (e.g., 300, 500, 600 mm). -
Number of Pockets
Options: 3, 4, 5, 6, 8 pockets, or customized -
Pocket Depth
Customzied (e.g., 300–650 mm). -
Filter Media
Synthetic fiber, polyester, or microfiber. -
Frame Material
Galvanized steel, aluminum, or plastic. -
Efficiency Rating
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MERV 8–15, or
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ISO16890: ePM10 / ePM2.5 / ePM1 classes, or
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EN779: F5–F9.
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Airflow Rate
0.45–0.9 m/s rated speed. -
Initial Resistance / Pressure Drop
70–150 Pa depending on efficiency. -
Final Pressure Drop
250–450 Pa. -
Dust Holding Capacity
Very high due to large surface area. -
Operating Temperature
Up to 70–80°C.

Activated Carbon Filter:
The activated carbon filter is specially designed to remove odors, gases, and chemicals from the air. Instead of trapping dust like normal filters, it uses activated carbon, a highly porous material that absorbs bad smells and VOCs (volatile organic compounds).
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Types: Carbon Panel Filter; Carbon Pocket Filter; Carbon Honeycomb Filter
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Material: Activated carbon granules or carbon-loaded nonwoven
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Thickness: 10–50 mm (varies by type)
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Carbon content: 200–600 g/m²
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Efficiency: Focused on gas/odor removal, not particle filtration
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Airflow resistance: 50–150 Pa (depending on thickness and density)
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Frame: Cardboard, galvanized steel, or aluminum
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Temperature limit: 50–80°C (varies by material)

Air Filter Purification Boxes:
The air purification box has dual filtration functions: a coarse filter and a fine filter. The coarse filter removes dust, compounds, and other harmful substances that are visible to the naked eye. The fine filter removes carbon monoxide, carbon dioxide, formaldehyde, benzene, vehicle exhaust, factory emissions, and other harmful gases that are invisible to the naked eye. Air pollution is very serious and poses a serious threat to people.
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The filter can be bag filter, plate filter or activated carbon filters which can effectively control odor and organic pollution in the air. Just let us know your requirements, we will customize the product you need.

Air Purification Units:
Purification AC units can be a complete HVAC system rather than a simple filter plate. This kind of AC can be in many styles such as simple purification/filter box, fresh air system, packaged AC, floor standing AC, air handling units (AHU), rooftop air conditioner (RTU), etc.








