FFU - Fan Filter Unit

Rayshen’s Fan Filter Unit (FFU) is a self powered, high-efficiency air filtration system engineered to deliver clean, consistent, and particle-free airflow in cleanrooms and controlled environments. Designed to meet the demands of modern contamination control, each FFU combines a high-performance fan module with a HEPA or ULPA filter, ensuring reliable and precise air quality management by effectively overcoming internal system resistance.

These units are optimized for modular cleanroom systems, offering flexibility and adaptability in applications such as zoning control, process-specific airflow management, and retrofit installations. Built for durability, efficiency, and ease of maintenance, Rayshen FFUs are reusable, serviceable, and cost-effective, making them a valuable long term solution for critical industries like pharmaceuticals, semiconductors, biotechnology, and healthcare.

Core Features & Technical Highlights:

• Cleanroom Compatibility: Ideal for ISO Class 5 to Class 8 cleanroom environments

• Filtration: Integrated with HEPA (≥99.99%) or ULPA (≥99.9995%) filters

• Construction:

  • Casing: Galvanized or stainless steel

  • Impellers: Steel aluminum alloy or full aluminum

• Motor Type: DC brushless motors with stepless speed control for stable airflow and energy efficiency

• Airflow Capacity: Ranges from 850 to 2400 CFM, available in standard 2×4 and 4×4 configurations

• Pressure Type: Negative pressure supply system minimizes ductwork and reduces contamination risk

• Control Options:

  • Software based control panels

  • Direct switch start functions

  • High-temperature operational safety

Model Variants:

• GF24DC – Compact, efficient unit for smaller modular zones

• GF44DC – Larger coverage with enhanced control for high demand areas

Why Choose Rayshen FFUs?

• Energy Efficient Operation: DC brushless motors ensure low power usage with stable performance

• High Cleanroom Compatibility: Supports ISO Class 100 environments

• Modular & Scalable: Easily integrates into existing or new cleanroom infrastructure

• Low Maintenance: Designed for easy servicing and long term use

• Customizable Airflow & Size Options: Tailored solutions for specialized applications

Rayshen Fan Filter Units represent the future of cleanroom airflow management. Whether you’re constructing a new cleanroom or upgrading an existing one, our FFUs combine smart technology, energy saving performance, and robust engineering to help you meet regulatory compliance and maintain the highest standards of air purity.