FFU Selection Guide: Achieving ISO Class 5 with HEPA Fan Filter Units

The Fan Filter Unit (FFU) has fundamentally changed how we build cleanrooms. In the past, massive centralized HVAC systems were the only way to achieve high-purity air. Today, modular FFU systems allow for incredible flexibility and scalability, making ISO Class 5 (Class 100) environments attainable for industries ranging from semiconductor fabrication to pharmaceutical packaging.

Engineering the Perfect Micro-Environment

Our FFU units are integrated systems consisting of a high-efficiency fan and a HEPA or ULPA filter. The core value of our design lies in Low Vibration and Low Noise. In a large-scale cleanroom with hundreds of units running simultaneously, noise management is vital for operator safety and equipment precision. Our units utilize specialized internal air duct designs to ensure that airflow remains uniform ($0.45m/s \pm 20\%$) while keeping decibel levels to an industry-leading minimum.

Advanced Monitoring and Control

Modern manufacturing requires intelligence. Our FFU systems can be equipped with computerized group control systems. A single central console can monitor and adjust up to 7,905 individual units. This allows facility managers to dial down airflow in non-active zones to save energy or ramp up speed in critical areas.

Material Selection for Diverse Industries

We offer various housing materials to suit specific environmental needs:

  • Galvalume (Aluzinc): The standard for general electronics.

  • Stainless Steel (SUS): Essential for pharmaceutical and food industries where corrosion resistance is required for sterilization.

  • Powder-Coated Steel: A cost-effective, durable solution for clean workshops.

By pairing our FFU units with DOP-tested H13/H14 HEPA filters, we guarantee a leak-free environment that meets the most stringent global quality standards.

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