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What is FFU in Cleanroom? A Complete Guide to Fan Filter Units

2025-07-07

Latest company case about What is FFU in Cleanroom? A Complete Guide to Fan Filter Units
Introduction

In cleanroom environments, maintaining a contaminant-free space is essential for industries such as pharmaceuticals, electronics, biotechnology, and semiconductor manufacturing. One key device responsible for providing clean, stable airflow is the Fan Filter Unit (FFU)—a system powered by a high-efficiency FFU fan that delivers purified, laminar airflow.

FFUs are self-contained air filtration modules widely used to maintain ISO-classified air quality. In this article, we’ll explore what FFUs are, how FFU fans work, key product features, and the applications of our FFU-GCC1000 unit.

What Is an FFU?

A Fan Filter Unit (FFU) is a modular air purification device integrating a high-performance FFU fan and a HEPA or ULPA filter. The fan draws air from above, pushes it through the filter, and supplies clean, laminar airflow to the cleanroom.

FFUs are commonly installed in:

  • Cleanrooms
  • Clean workstations
  • Modular cleanroom systems
  • Laminar flow hoods
  • Assembly lines requiring ISO-classified cleanliness

FFUs are favored because they provide independent, stable airflow, reduce load on central HVAC systems, and are easy to maintain.

How Does an FFU Work? (FFU Fan Airflow Process)

The FFU fan is the core component that powers air movement through the filtration system. An FFU operates by:

  1. Drawing room air through the FFU fan motor system
  2. Pushing air through a HEPA/ULPA filter, removing particles as small as 0.3 microns at 99.999% efficiency
  3. Delivering uniform laminar airflow (0.45 m/s ±20%) through the bottom diffuser

The high-efficiency centrifugal FFU fan ensures stable airflow even as filter resistance increases. This helps keep dust, microbes, and airborne contaminants out of critical areas.

Key Features of Our FFU (Model: FFU-GCC1000)
1. High-Efficiency Centrifugal FFU Fan
  • Direct-drive motor ensures low noise and low vibration
  • Maintenance-free design
  • Adjustable fan speed ensures stable airflow throughout the filter lifespan
  • Over 30,000 hours of continuous operation

The FFU fan is engineered for cleanroom applications, offering strong pressure, stable performance, and high reliability.

2. Modular & Flexible Cleanroom Design
  • Can be used individually
  • Or connected in series to build a Class 100 (ISO 5) cleanroom line

This makes it ideal for electronics assembly lines, semiconductor fabs, and pharma clean zones.

3. Durable & Corrosion-Resistant Body
  • Constructed from galvanized aluminum stainless steel
  • Long-term resistance to corrosion and chemical exposure
4. Optimized Laminar Airflow Structure
  • Internal airflow channels deliver smooth, uniform air distribution
  • Ensures stable cleanroom performance across the working area
5. Strict Testing & International Compliance

Each unit is tested according to:

  • US Federal Standard 209E
  • ISO cleanroom airflow requirements
  • HEPA/ULPA filtration efficiency guidelines
Optional Upgrades

To meet different industry needs, we offer:

DC Motor FFU Fan – Saves up to 50% energy, ideal for large cleanrooms
ULPA Filters – 99.9995% efficiency at 0.12 microns
Stainless Steel or Powder-Coated Housing
Round Duct Connection for HVAC integration

Technical Specifications
Model FFU-GCC1000
Dimensions 1175*570*230 mm
Filter Size 1170*570*69 mm
Airflow 1000 m³/h
Air Velocity 0.45 m/s ±20%
Cleanliness Class 100 (Fed Std 209E)
Filtration 99.999% @ 0.3µm
Noise Level ≤62 dB
Vibration ≤0.08 mm/s
Material Galvanized aluminum steel
Power AC 220V 50Hz
Consumption 120W–130W
Applications of FFU Fans and FFU Systems

FFUs are widely used in industries requiring precise contamination control:

Semiconductor Manufacturing

Prevents micro-particles from compromising wafer production.

Pharmaceuticals & Biotechnology

Maintains sterile conditions for drug development and mixing areas.

Medical Device Assembly

Protects delicate components from dust and microbes.

Food & Beverage Processing

Keeps packaging zones cleaner and safer.

Aerospace & Optics

Protects high-precision optical and aerospace components.

Conclusion

The FFU fan plays a vital role in maintaining cleanroom integrity by delivering stable, high-efficiency airflow. Our FFU-GCC1000 offers excellent performance, low noise, energy efficiency, and modular design—making it ideal for a wide range of industrial cleanroom applications.

Whether you require a single unit or a complete cleanroom FFU fan system, GCC provides reliable solutions backed by international standards and years of engineering expertise.