Core Functions Of High-Efficiency FFU (Fan Filter Unit) Laminar Air Flow

Core Functions of High-Efficiency FFU (Fan Filter Unit)

A high-efficiency FFU (Fan Filter Unit) is a self-powered, modular air supply terminal unit with high-efficiency filtration, widely used in environments requiring extremely high air cleanliness. Its core functions and working principles are as follows:

Core Functions

1. ‌High-Efficiency Filtration‌
   FFUs are typically equipped with HEPA or ULPA high-efficiency filters, achieving filtration efficiency levels of H13/H14 (99.97%+ for 0.3-micron particles). Some models support multi-stage filtration (e.g., pre-filter + HEPA + activated carbon) to address dust, chemical pollutants, etc.

2. ‌Intelligent Control‌

   • Supports remote monitoring, allowing adjustment of fan speed and filter life checks;
   • Automatically adjusts operation modes based on sensor data (e.g., PM2.5);
   • Features timer functions for energy savings.

3. ‌Energy Efficiency & Low Noise‌

   • Uses advanced EC motors, reducing energy consumption by 30–50% compared to traditional motors;
   • Optimized airflow design keeps noise levels at 55–65 dB (with optional silencers).

Working Principle

FFUs draw air from the top, filter it through high-efficiency filters, and deliver clean laminar airflow at a uniform speed of 0.45 m/s ±20%, creating a localized unidirectional clean zone. Their modular design allows flexible assembly to meet varying cleanliness requirements (e.g., Class 100, 1000 cleanrooms).

Typical Applications

• ‌High-cleanliness environments‌: Semiconductor production lines, biosafety labs, operating rooms;
• ‌Flexible renovation scenarios‌: Facilities requiring frequent clean area adjustments or with limited ceiling height;
• ‌Localized purification needs‌: Clean benches, clean booths, etc

Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.

Which is the only high-tech technology company in Southern China with CNAS certification

We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, Engineering & Installation and After-Sale Service of clean room and devotes to control and treatment of air PM2.5, formaldehyde, benzene, VOC and other toxic and hazardous substances.

Our main clean room products and equipment include air filter, air shower/cargo shower room, high efficiency air outlet, FFU, AMC chemical filter.

We serve chip microelectronics, data centers, chemical laboratories, new energy, medical devices, pharmaceutical manufacturing, food and beverage, cosmetics, biotechnology, precision instruments, aerospace and other industries. The business fields involve clean room products and equipment, air micro-pollution services, clean design and installation, including household fields, commercial fields, industrial fields and animal husbandry fields.

We won good reputation in this industry. Products and services are highly acknowledged and recommended by customers, we hold strong influence and competitiveness in the market as well. With the mission of being the leading enterprise in Control and Treatment of Air Micro-Pollution, We strive for the leapfrog development of products, technologies and services in Spirit of The Pioneering, Innovative, Combatant and Progressive. We would constantly bring forth new ideas in the innovation and development with protection and sustainable China's environment.