Primary Efficiency Air Filter

Features

Low resistance, high air volume, long service life, large filtration area, and high dust-holding capacity.

Sturdy structure, capable of normal operation under ultra-high air volume conditions.

• Box filters use synthetic fiber and non-woven filter materials to create replaceable filter cartridges, reducing operating costs.
• High-strength outer frame with added support design enhances the durability and strength of the filter.
• Available in both "flanged" and "non-flanged" configurations.
• A sealing gasket can be optionally installed between the box-style folded filter and the fixed frame to prevent air leakage.
• Filtration efficiency grades: G1, G2, G3, G4 (EN779).

• High Efficiency
• Cost-Effective
• Flexible Compatibility
• Wide Applicability
• Multiple Filtration Grades

Material Composition & Operating Conditions

Product Size and Specific Parameters

Application Fields

• Industrial & civil ventilation systems
• Pre-filtration for cleanroom HVAC
• Commercial buildings (offices, hotels, shopping malls)
• Healthcare & pharmaceutical facilities
• Electronics manufacturing & food processing

FAQ

• Premium Materials: High-strength frame + synthetic fiber media ensure low resistance, high dust capacity, and extended service life.
• Flexible Compatibility: Multiple sizes (customizable) and flanged/flangeless installation options to fit various ductwork requirements.
• High-Efficiency Filtration: Complies with EN779 standard (G1-G4 available), effectively protecting downstream high-grade filters.
• Cost-Effective & Durable: Replaceable cartridge design reduces long-term maintenance costs, offering better value than disposable filters.