Large-scale industrial HVAC units and centralized workshop air supply systems operate under constant, high-velocity airflow. Standard flexible pre-filters often suffer from structural sagging, wire mesh distortion, and media vibration, causing air leakage and short service lifecycles.
Traditional Filters vs. Chuqi Skeleton Solution
Standard Panel Filters: High-velocity air currents causing media sagging -> Severe air bypass and accelerated downstream equipment wear.
Chuqi Skeleton Panel Filter: Reinforced dual-layer structural steel mesh -> Stable media positioning and continuous clean air delivery.
Engineering Advantages & Cost Savings:
Eliminating Frame Deformation: Weak filter frames buckle under sustained high-pressure ventilation, creating unsealed gaps around the filter housing.
Reducing System Fan Load: High initial resistance on primary filters draws excessive power from blower fans, driving up energy bills.
Preventing Frequent Maintenance Shutdowns: Low-capacity media degrades rapidly under continuous industrial dust loading, forcing unnecessary operational downtime.
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We offer flexible OEM/ODM manufacturing to match your exact dimension and efficiency requirements. Contact our team for a fast quote or to verify compatibility with a free test sample.

Built specifically for high-throughput ventilation, this G3 panel filter focuses on long-term durability and energy conservation.
Heavy-Duty Double-Layer Wire Skeleton: Features a dual-sided galvanized wire frame that firmly sandwiches the synthetic media. This design prevents filter deformation and fluttering, maintaining structural integrity even in harsh, continuous airflow environments.
High-Permeability White Synthetic Media: Constructed from premium white polyester fibers with high porosity. It captures coarse dust (>= 5 um) efficiently while allowing maximum airflow with minimal fan static pressure resistance.
Cost-Efficient Maintenance & Reusability: Designed for easy replacement or periodic dry dust removal (air blowing). The structural skeleton reduces physical wear on the filter media, extending total operational lifecycle.
Core Procurement Value: Maintains high volume airflow (up to 4000 m³/h per cell) while protecting central AC fans, reducing electricity costs across large factory spaces.
| Specification | Value |
| Filter Class (EN779 / ISO 16890) | G3 / ISO Coarse 50% |
| Filter Media Type | Durable White Synthetic Polyester Fiber |
| Frame Material Construction | Galvanized Steel Sheet / Extruded Aluminum Alloy |
| Internal Reinforcement | Dual-Sided Galvanized Steel Wire Skeleton |
| Standard Frame Depths | 46 mm (1.8 in) / 96 mm (3.8 in)/custom |
| Initial Pressure Drop | <= 50 Pa at nominal airflow |
| Dust Arrestance Capacity | >= 40% – 50% (Gravimetric Method) |
| Max Operating Temperature | <= 80°C continuous duty |
Fully customizable specifications available. For detailed technical data, please 【visit the product page】 or 【reach out to our technical team】directly.

This G3 skeleton panel filter is specifically engineered for high-throughput ventilation, seamlessly adapting to standard industrial air handling systems across diverse operational setups.
Compatible System & Equipment Types
Central Air Handling Units (AHUs) & Rooftop Units (RTUs): Installed at primary intake sections to remove large dust particles before reaching cooling/heating coils, extending system lifespan.
Fresh Air Handling Units & Makeup Air Systems (MAUs): Deployed at outdoor air intake louvers to filter heavy ambient dust under high face velocities.
Cleanroom Primary Air Cabinets: Acts as the reliable First-Stage pre-filter, shielding expensive secondary bag filters and terminal HEPA units from coarse dust clogging.
Factory Dust Extraction & Workshop Circulators: Captures coarse airborne particles in heavy manufacturing spaces to safeguard central blower fans.
Primary Industrial Applications
Automotive & Heavy Machinery Assembly: Filters intake air for large-scale production workshops and painting pre-treatment lines.
Commercial Facilities & Public Buildings: Serves as high-volume primary air filtration for shopping malls, airports, and commercial HVAC networks.
General Manufacturing & Logistics Warehouses: Protects industrial ventilation units in dust-prone environments like packaging and metal fabrication plants.
Scenario A: Commercial Buildings & Clean Industrial Assembly
Filter Duty: Light-to-moderate dust load, continuous air recirculation.
Inspection Protocol: Monthly visual inspection; clean media via compressed air every 3 months.
Replacement Cycle: Replace after 8 to 12 months of operation.
Scenario B: High-Volume Manufacturing & Heavy Dust Environments
Filter Duty: Heavy outdoor dust intake, high-throughput continuous ventilation.
Inspection Protocol: Monitor pressure drop bi-weekly; service media when differential pressure reaches 100 Pa.
Replacement Cycle: Replace after 3 to 6 months to ensure optimal system efficiency and low fan energy consumption.
Frequently Asked Questions
Q1: What makes a "Skeleton Panel Filter" different from standard panel filters?
A1: A skeleton panel filter uses a double-layer galvanized steel wire frame to lock the white synthetic media firmly in place. This rigid structure prevents media sagging, tearing, or vibrating under heavy airflow conditions.
Q2: Why is G3 efficiency recommended for central HVAC primary filtration?
A2: G3 efficiency (ISO Coarse 50%) balances coarse dust capture (>= 5 um) with minimal airflow resistance. It keeps air volume high and energy costs low while effectively protecting HVAC coils and secondary filters.
Q3: What frame materials are available for this G3 skeleton filter?
A3: We offer both extruded aluminum alloy and galvanized steel sheet frames paired with double-layer steel skeleton supports, ensuring high mechanical strength for various industrial housing units.
Q4: Is the white synthetic filter media washable or cleanable?
A4: Yes. The durable white synthetic fiber media can be periodically cleaned using compressed air blowing or light water rinsing to remove accumulated surface dust, extending its service life before replacement.
Q5: Can Chuqi produce custom dimensions for non-standard AHU filter racks?
A5: Yes, as a direct factory manufacturer, we produce custom length, width, and depth (46 mm or 96 mm) configurations tailored to your precise OEM or facility maintenance requirements.



