The AC HEPA Fan Filter Unit is a terminal purification device that integrates a fan and a high-efficiency air filter (HEPA) or ultra-high-efficiency air filter (ULPA) within a single module.

This product utilizes a cold plate spray coating process, resulting in a corrosion-resistant and easy-to-clean surface. Equipped with an H14-grade HEPA filter (filtration efficiency ≥99.997%, MPPS particles), it effectively removes suspended particulates ≥0.3μm, ensuring cleanroom air purification requirements of Class 100 to 10,000.

The unit features an optimized internal air duct structure and a low-power AC fan, ensuring high filtration efficiency while providing stable and uniform airflow distribution, minimizing turbulence and dead spots. It is commonly used for terminal air supply in cleanrooms such as chip manufacturing, pharmaceutical production, food processing, cosmetics production, and modular operating rooms.

Why AC FFUs are More Energy-Efficient Than DC FFUs

Many users often perceive DC fans as more energy-efficient. However, in industrial purification equipment, AC HEPA Fan Filter Units offer significant energy-saving advantages in specific application scenarios:

Stable Constant Speed Characteristics

AC fans offer high speed stability, making them suitable for long-term, constant air volume cleanroom operation. They eliminate the need for frequent speed adjustments, thus reducing energy consumption fluctuations.

Efficiency Range More Suitable for Purification Applications

Under rated operating conditions, the AC fan's energy efficiency ratio (air volume/power consumption) closely matches the purification system's resistance curve, enabling it to maintain high static pressure output at low power input, reducing excess energy consumption.

Low Long-Term Operation and Maintenance Costs

AC fans offer a simple structure and long motor life, eliminating the labor and spare parts costs associated with frequent replacement and commissioning, indirectly reducing overall lifecycle energy consumption and costs.

Based on our extensive product testing, the Industrial Fan and Filter Unit (IFFU) can reduce total power consumption by 5%-10% compared to some low-end DC solutions at the same cleanroom cleanroom level, making it ideal for continuously operating cleanrooms.

HEPA Fan Filter Unit Installation Precautions

During cleanroom construction, the installation accuracy of the HEPA Fan Filter Unit directly impacts air cleanliness and operating costs. Key considerations include:

Correct Filter Installation Orientation

HEPA/ULPA filters have an inlet side and an outlet side. Installing them in the wrong direction will result in:

• Significantly reduced filtration efficiency, preventing the design cleanroom level from being achieved

• Increased air resistance, hindering air intake, increasing fan load and energy consumption

• Shortened filter life

Sealing Strip Integrity Check

Before installation, ensure that the sealing strip between the filter and the housing is not damaged or warped. Otherwise, bypass leakage will occur, impacting cleanroom performance.

Air Velocity and Pressure Differential Testing

After installation, air velocity and static pressure should be tested to ensure even airflow distribution and operation within the system resistance curve.

Avoiding secondary contamination

The installation process should be performed in a cleanroom environment. Operators must wear cleanroom clothing to prevent dust, fibers, and other impurities from entering the filter.

FFU Fan AC Motor vs DC Motor

Our DC motors are Japanese Nidec brand. If your budget is high, you can choose a DC FFU.

If you require a higher level of air filtration, our Amber Team can also provide customized ULPA Fan Filter Unit solutions. We offer one-stop services including design, installation, and commissioning to ensure long-term, stable operation of your cleanroom. Please contact us if you require any assistance.

Fan Filter Unit Specifications

Dongguan Amber Purification Engineering Limited founded in 2008. As a leading company who provider of one-stop solutions for modular clean room. With over 16 years of experience in the clean room industry, we offer turnkey solutions for projects in diverse sectors such as hospital operating rooms, ICU, pharmaceutical facility, bio-lab, and so on. Our team of more than 20 skilled engineers brings extensive knowledge to all projects, from design and manufacturing to installation and after-sales service. Working from a 10,000+ square meter workshop, we produce a wide range of high-quality products, including modular operating room wall and ceiling panel, clean room door, air shower, fan filter units (FFU), pass box, surgical table, and medical washing sink.

From manufacturing to installation, Amber takes every step possible to ensure a high-quality service, earning respect and recognition from customers all over the world. As an example, we install parts in preset positions to ensure a high work efficiency. Our customers come from around the world, including America, Malaysia, Sri Lanka, Indonesia, Tanzania, Bangladesh, Uzbekistan and so on. They have been extremely pleased with our high-quality products and premium services, and we sincerely encourage new and prospective customers to contact us for any information, or for any problems concerning a modular clean room project. We are glad to work together with you and finally bring you the satisfied products.