In industries such as cleanroom technology, pharmaceuticals, electronics manufacturing, and biological laboratories, FFU (Fan Filter Unit) and LAF (Laminar Air Flow) are both critical air purification devices. Although their goal is to provide clean air, there are significant differences in their design, functionality, and application scenarios. This article will analyze the distinctions between the two in detail and help you choose the right solution.
1. What Are FFU and LAF?
FFU (Fan Filter Unit)
An FFU is an independent module that integrates a fan and a high-efficiency filter (HEPA/ULPA). It is typically installed in cleanroom ceilings or modular clean air systems. By forcing airflow, it delivers filtered clean air evenly to the work area.
LAF (Laminar Air Flow)
An LAF is a self-contained clean bench that includes a fan, HEPA/ULPA filter, and a dedicated work surface. It provides unidirectional laminar airflow (vertical or horizontal) and is suitable for localized high-cleanliness operations.
2. Core Differences Comparison