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{"title":"Cardboard Frame Air Pre Filter G3 G4 Coarse Cotton Non Woven Glass Fiber","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/99\/7d\/18daa9172cb9863c0880ee963e6f-200x200-1\/cardboard_frame_air_pre_filter_g3_g4_coarse_cotton_non_woven_glass_fiber.jpg","attrs":{"Place of Origin":"Guangdong, China","Brand Name":"ZJNF","Packaging Details":"plywood\/wooden package","Supply Ability":""}}
{"title":"Rectangular Non Woven Fabric Air Pre Filter with Galvanized Steel Frame for","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/bc\/e0\/374202d734a77c4e51644850aeef-200x200-1\/rectangular_non_woven_fabric_air_pre_filter_with_galvanized_steel_frame_for_manufacturing_plant.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Shape":"Rectangular"}}
{"title":"Galvanized Steel Panel Pre Filter For Air Purifier With Rectangular Shape","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/67\/03\/54533240114c74bef71155cc8f0a-200x200-1\/galvanized_steel_panel_pre_filter_for_air_purifier_with_rectangular_shape_chemical_and_moisture_resistance.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Type":"Panel"}}
{"title":"Capture Large Particles Resistance Non Woven Fabric Pre Air Filter With Airflow","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/6c\/e6\/124128c72755a3dea77dcfce2599-200x200-1\/capture_large_particles_resistance_non_woven_fabric_pre_air_filter_with_airflow_capacity.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Airflow Capacity":"High Airflow Capacity"}}
{"title":"Rectangular Airflow Capacity Non Woven Fabric Air Pre Filter With Chemical And","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/5d\/5c\/cb99c6c5e72009ce7e41d0258ec0-200x200-1\/rectangular_airflow_capacity_non_woven_fabric_air_pre_filter_with_chemical_and_moisture_resistance.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Working Principle":"Capture Large Particles"}}
{"title":"Galvanized Steel Air Pre Filter For Capturing Large Particles In Manufacturing","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/cc\/36\/a98e91a13f5700ccb832aecf8290-200x200-1\/galvanized_steel_air_pre_filter_for_capturing_large_particles_in_manufacturing_plants.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Item":"Pre Air Filter"}}
{"title":"Industrial Airflow Capacity Air Pre Filter with Low Maintenance Nylon Mesh","imgUrl":"https:\/\/img.silkroadsl.com\/nimg\/df\/7f\/80e55275e1a464cb6059366374d2-200x200-1\/industrial_airflow_capacity_air_pre_filter_with_low_maintenance_nylon_mesh_filtering.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"Pre Filter","Place of Origin":"Shenzhen","Honeycomb":"Paper\/aluminum\/ Plastic Honeycomb"}}
Cardboard Frame G3 G4 Coarse Cotton Pre Air Filter Non-Woven Glass Fiber Material
Feature
Zhongjian South paper frame anti-epidemic filter is a pre-filter with good performance for ventilation system.
The outer frame uses 600g covered kraft paperboard paper frame, and the filter material uses polyester fiber cotton+diamond metal mesh.
The running resistance is low and the dust capacity is high.
Common porcine virus particles are small in diameter, and most of them can only be suspended in the air in the form of aerosol attached to the carrier (very few exist in the air alone).
As a pre-filtration system of pig house epidemic prevention system, it can prevent moisture and filter larger particles effectively and can be used together with high-efficiency filters to effectively prevent the spread of blue ear disease and swine asthma virus.
Characteristics of Pre-Air Filters
Filtration Efficiency:
Pre-air filters are designed to capture larger particles such as dust, lint, and hair.
Typically, they have lower filtration efficiency (e.g., 30–60%) compared to HEPA filters.
Purpose:
Acts as the first line of defense to protect downstream filters (like HEPA) from becoming clogged by large particles.
Extends the lifespan of high-efficiency filters by reducing their load.
Material:
Made from coarse mesh, foam, or synthetic fibers, depending on the application.
Cost:
Relatively inexpensive due to simpler construction and lower filtration efficiency.
Maintenance:
Easy to clean or replace; often reusable if washable materials are used.
Applications:
Commonly used in HVAC systems, air purifiers, and industrial equipment to pre-filter air.
Technical Data
Type
Construction
Size
(W/L/H mm)
Filtering Surface (m2)
Rated Air Flow (m3/h)
Comparision between initial pressure drop and rated air flow 70% 100% 120%
Final pressure drop (Pa)
ZNCX-A(B) P5521-G3
Panel
595*595*21
0.35
2250
50/70/-
40PA-50PA
ZNCX-A(B) P6621-G3
Panel
595*495*21
0.29
2000
50/70/-
40PA-50PA
ZNCX-A(B) P8821-G3
Panel
595*295*21
0.17
1500
50/70/-
40PA-50PA
ZNCX-A(B) PZ3605-G3
Fold
595*595*46
0.9
3000
60/80/-
40PA-50PA
ZNCX-A(B) PZ3605-G3
Fold
595*290*46
0.45
1600
60/80/70
40PA-50PA
ZNCX-A(B) PZ6610-G3
Fold
595*495*46
0.75
2700
30/55/75
40PA-50PA
ZNCX-A(B) PZ6610-G3
Fold
595*595*96
1.2
3500
30/55/75
40PA-50PA
ZNCX-A(B) PZ3605-G4
Fold
595*495*96
1
3000
70/110/-
40PA-50PA
ZNCX-A(B) PZ3605-G4
Fold
595*290*96
0.6
2500
70/110/-
40PA-50PA
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-4000000
Employee Number:
200~300
Ecer Certification:
Verified Supplier
Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.
Which is the only high-tech technology company in Southern China with CNAS certification
We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, ... Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.
Which is the only high-tech technology company in Southern China with CNAS certification
We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, ...
9th Floor, Block C, Coolpad Building, Intersection Of Keyuan Avenue And Baoshen Road, Nanshan Gaoxin North District, Songpingshan Community, Xili Street, Shenzhen city, Guangdong, China