Overview
Pocket Bag Filter, also called bag air filter, is a widely used medium-efficiency air filter for HVAC and ventilation systems. It adopts multi-pocket bag design to expand the filtration area greatly, which brings high dust holding capacity, low initial resistance and long replacement cycle. It works as the middle filtration stage in multi-level air purification, catching fine dust particles after primary filters and protecting terminal HEPA filters, greatly reducing the operation cost of the whole air handling system.
Filter Media Options
Imported glass fiber media: Efficiency F5-F8. Classic mature material, stable filtration efficiency, long service life, consistent performance under continuous running, a traditional and reliable choice for many industrial projects.
Imported synthetic chemical fiber media: Efficiency F5-F8. Eco-friendly, flame retardant, lightweight, has become more popular in recent years. It features good flexibility and excellent dust loading performance.
Primary efficiency bag filter: Efficiency G3-G4. Washable and cost-effective, suitable for pre-filtration to block large particles and lint.
Core Features
Multi-pocket structure, large filtration area, high dust holding capacity, less frequent replacement.
Optional glass fiber or synthetic fiber media to fit different efficiency and budget demands.
Synthetic fiber version is flame retardant, safe for public buildings and factory ventilation.
G3/G4 grade models support washing and repeated use, saving procurement expense.
Lightweight and flexible bags, easy to install into filter frames of air handling units.
Low air resistance, reduces the fan load and saves energy consumption.
Application Scenarios
This Pocket Bag Filter is mainly matched with central air conditioning and central ventilation systems. It is widely deployed in commercial buildings, office buildings, hospitals, pharmaceutical workshops, electronics factories, painting workshops, shopping malls and airports. It stabilizes indoor air cleanliness, protects air conditioning equipment and downstream high-efficiency filters.
Specifications
| Grade | 3bag type | 4bag type | 5bag type | 6bag type | 8bag type | 9bag type | 10bag type | 12bag type |
|---|
| G3, G4 | 287×592×350 |
| 490×592×350 | 592×592×350 |
| 897×592×350 |
|
|
| F5 | 287×592×60 |
| 490×592×500 | 592×592×600 |
|
|
|
|
| F6 | 287×592×650287×592×550 |
| 287×592×650490×592×550 | 287×592×650 | 592×592×650 |
| 592×592×650 |
|
| F7 | 287×592×650287×592×550 | 287×592×650 | 490×592×650490×592×550 | 287×592×650 | 592×592×650 |
| 592×592×650 |
|
| F8 | 287×592×650287×592×550 | 287×592×650 | 490×592×650490×592×550 | 287×592×650 | 592×592×650 |
| 592×592×650 |
|
FAQ
Q1: What efficiency grades can this Pocket Bag Filter provide?
A1: We supply G3, G4, F5, F6, F7, F8 grades. G3-G4 is primary efficiency, F5-F8 is medium efficiency.
Q2: What kinds of filter media are available for the Pocket Bag Filter?
A2: Three types: glass fiber, synthetic chemical fiber and washable primary fiber. Synthetic fiber is flame retardant and environmental-friendly.
Q3: Can the Pocket Bag Filter be washed?
A3: Only G3 and G4 grade pocket bag filters are washable. F5-F8 medium efficiency versions cannot be washed, need to be replaced once saturated.
Q4: Where is the Pocket Bag Filter normally used?
A4: It is widely used for central air conditioning and central ventilation systems in hospitals, factories, commercial buildings and clean workshops.
Q5: Can we customize the size and bag quantity of the Pocket Bag Filter?
A5: Yes. Besides the standard sizes listed above, custom dimensions, bag numbers and frame options are available according to your air handling unit.
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