# Mini-Pleated HEPA Filter

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

Mini-pleated HEPA elements for terminal filtration in cleanroom air systems and FFU (fan filter unit) equipment.

1. High Efficiency & Reliability: Ultra-high efficiency filtration with stable performance and long service life.

2. Energy-Saving Design: Separator-free structure reduces resistance, improves efficiency, and lowers operating costs.

3. Wide Applications: Suitable for food, healthcare, semiconductor, automotive, and other high-cleanliness environments.

## Key features

- **Filtration grades**: H13 to UH20 (H13–H14 for HEPA duty and UH17–UH20 for ULPA, with MERV17–MERV20 equivalents)
- **Separator-free pack**: Hot-melt bonded (No separator foil: lower resistance and more media area in the same frame)
- **Low initial resistance**: 100 – 110 Pa (Declared per size at its rated airflow)
- **Overall thickness**: 50 and 59 mm (Thin packs for AHU and ceiling-grid retrofits)
- **Protective mesh**: Diamond-pattern (Painted metal mesh on the upstream face)

## Specifications

- Filtration grade: H13, H14, U15, U16; UH17 to UH20; MERV17 to MERV20
- Filtration efficiency: 99%, 99.9%, 99.999%, 99.9999%, 99.99999% (ASHRAE 52.1-1992)
- Target particles: ≥0.5 μm, ≥0.3 μm and ≥0.1 μm
- Media: Ultrafine glass fibers or HE PP paper
- Frame: Aluminum, stainless or galvanized steel
- Separator: Hot melt adhesive
- Sealant: PU two-component polyurethane glue
- Gasket: Polyurethane foam EVA
- Protective mesh: Diamond-pattern painted metal mesh
- Initial resistance: 100 – 110 Pa
- Final resistance: 250 Pa
- Rated airflow: 450 – 680 m³/h
- Standard thicknesses: 50 mm and 59 mm in the published size table
- Continuous temperature: ≤80 °C
- Instant temperature: ≤100 °C
- Moisture resistance: 100% RH

## Applications

Food, Healthcare, Semiconductor, Automotive, High-cleanliness Environments

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