W-type sub-high efficiency air filter is a transitional filter between medium efficiency (F series) and high efficiency (HEPA). It has a filtration efficiency of 95%~99.9% (F9-H11 grade) for particles ≥0.5μm. It has the characteristics of low wind resistance and high dust holding capacity. It is often used in clean room pre-filtration, operating rooms, electronic factories and other places with high air quality requirements. It can significantly extend the life of HEPA Filters.
Product Specifications:
Filter Grades: F9-H11
Filter Efficiency: High Efficiency, Sub-High Efficiency, Medium Efficiency
Applicable Air Volume: 500-10,000 m³/h
Standard Dimensions: 592*592*292mm
Construction and Materials:
Filter Element: W-shaped pleated design, with or without baffles
Filter Media: Ultra-fine glass fiber, polypropylene filter paper
Frame: Galvanized steel, aluminum alloy, ABS
Product Features:
High-Efficiency Transition: Efficiency of 95%-99.9% for particles 0.5μm, bridging the performance gap between medium and high efficiency.
Low Air Resistance Design: Optimized filter media structure, initial air resistance ≤100 Pa, reducing system energy consumption.
W-shaped Structure: Unique wavy pleats (W-shaped pleats) increase filtration area and dust holding capacity.
Economical: Lower cost than HEPA, suitable for applications requiring high filtration but limited budget.
Applications:
Cleanroom pre-filtration: Electronics factories, pharmaceutical plants (protecting back-end HEPA filters)
Medical purification: Operating room, ICU fresh air systems (H11 grade)
Commercial buildings: Data centers, high-end office buildings (PM1.0 control)
Industrial dust removal: Paint shops, precision instrument manufacturing (F9 grade)
