# V-Bank HEPA Filter

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> Last updated: 2026-09-20 16:13:23

V-bank HEPA filters for cleanroom HVAC: a high-efficiency stage behind the pre-filter, or the pre-filter that protects the terminal units.

A V-bank HEPA filter is a high-efficiency stage that sits behind a pre-filter and ahead of the room's terminal filters, or serves as the pre-filter that protects them. Ultrafine glass fibre media is pleated into V-shaped cells rather than laid flat, which packs far more filtration area into the same face, so one element carries a large airflow at a resistance a flat panel could not hold. That is what makes it usable in air handling units where the available depth is limited.

Construction follows from that geometry. The pleat packs are bonded into a rigid metal frame with the cell joints sealed, because the gaps between cells are the bypass path, and unfiltered air takes any opening in preference to the media. Grade selection depends on the duty: used as a second stage, the element has to hold the efficiency class the cleanroom classification demands, while one used only as a pre-filter is chosen for dust holding and for the interval it gives the terminal filters behind it. Change-out is driven by pressure drop, and the final resistance setpoint matters more than a calendar.

## Key features

- **Filtration grades**: F9 to H14 (Four standard grades in one frame across the size table)
- **Low initial resistance**: 125 – 320 Pa (Declared per grade, from F9 to H14)
- **Rated airflow**: 1,520 – 3,400 m³/h (Covered by the six standard sizes in each grade)
- **Media area**: 7.40 – 24.26 m² (V-shaped cells pack the area into a 292 mm depth)
- **Face velocity**: 2.5 m/s (Held constant across every size in the table)
- **Final resistance**: 250 – 500 Pa (The change-out setpoint for the differential pressure gauge)
- **Six sizes per grade**: 592/610 mm faces (4V and 5V versions in 292 mm depth)
- **Sealed cell joints**: PU bonded packs (The gaps between cells are the bypass path, so they are sealed)

## Specifications

- Filtration grade: F9, H10, H13 and H14 in the standard size table; the family also covers M6, F7, F8, H15, H16 and UH17 to UH19
- Efficiency range: 67% to 99.999% (ASHRAE 52.1-1992)
- Filter object: ≥0.5 µm, ≥0.3 µm and ≥0.1 µm particles
- Filter media: Ultrafine glass fibre filter paper
- Frame options: Galvanised steel, aluminium or stainless steel
- Sealant: PU two-component polyurethane glue
- Gasket: EVA, EPDM or PU
- Standard thicknesses: 220, 250, 292 and 305 mm
- Standard sizes: 592×287×292/4V to 610×610×292/5V
- Media area: 7.40 – 24.26 m²
- Initial resistance: 125 – 320 Pa
- Final resistance: 250 – 500 Pa
- Face velocity: 2.5 m/s
- Rated airflow: 1,520 – 3,400 m³/h
- Moisture resistance: 100% RH
- Continuous temperature: ≤80°C

## Applications

Cleanroom HVAC Systems, Pharmaceutical and Healthcare Facilities, Semiconductor and Electronics Manufacturing, Food Processing Plants, Industrial and Commercial Facilities, Animal Husbandry Operations

## Technical Parameter

The standard size table covers four grades; each grade is listed in the same six sizes at a 2.5 m/s face velocity.