WHAT IS THE DIFFERENCE BETWEEN FAN FILTER UNIT AND LAMINAR FLOW HOOD?

Fan filter unit and laminar flow hood are both clean room equipment that improve the cleanliness level of the environment, so many people get confused and think that fan filter unit and laminar flow hood are the same product. So what is the difference between fan filter unit and laminar flow hood?

1. Introduction to fan filter unit

The full English name of FFU is Fan Filter Unit. The FFU fan filter unit can be connected and used in a modular manner. FFU is widely used in clean room, clean production line, assembled clean room and local class 100 clean room applications.

2. Introduction to laminar flow hood

Laminar flow hood is a kind of clean room equipment that can provide a local clean environment and can be flexibly installed above process points that require high cleanliness. It is composed of a box, a fan, a primary filter, lamps, etc. Laminar flow hood can be used individually or combined into a strip-shaped clean area.

3. Differences

Compared with fan filter unit, laminar flow hood has the advantages of low investment, quick results, low requirements for civil engineering, easy installation, and energy saving. Fan filter unit can provide high-quality clean air for clean room and micro-environment of different sizes and cleanliness levels. In the renovation of new clean room and clean room buildings, it can not only improve the cleanliness level, reduce noise and vibration, but also greatly reduce the cost, and is easy to install and maintain. It is an ideal component for clean environments and is generally used for the purification of large-area environments. The laminar flow hood adds a flow equalizing plate, which improves the uniformity of the air outlet and protects the filter to a certain extent. It has a more beautiful appearance and is more suitable for local environmental purification. The return air locations of the two are also different. Fan filter unit returns air from the ceiling while laminar flow hood returns air from indoor. There are differences in structure and installation location, but the principle is the same. They are all clean room equipment. However, the application range of laminar flow hood is not as wide as that of fan filter unit.