If you are new to cleanroom equipment, you may be confused by cleanroom fan filter units and air handling units. Here in this article, we would like to talk about the details of cleanroom fan filter units and air handling units. Following is the details.

For a cleanroom air handling unit, which is a part of a HVAC system, it plays an important role in temperature, humidity and pressurization in the controlled environment. A cleanroom air handling unit consist of primary filters, fan, cooling coils and a mixing chamber. The primary filters are installed in front of the HEPA filters to catch some larger particles and extend the working life of HEPA filters. And fan controls can be intergrated in to fan filter control system, it also can be placed in control panels.

And for cleanroom fan filter units, which will be used much better in modular cleanroom than the air handling units. Fan filter units can be used in different sizes of spaces with different cleanliness rating. And the required number of fan filters is decided by the requirements on air change rates and cleanliness. For example, an ISO class 8 cleanroom ceiling just needs 5-15% of ceiling coverage, but for an cleaner cleanroom, it may need 60-100% coverage. And the installaation of fan filter unit is very easy since fan filter unit is very flexible. If we want to expand a cleanroom or to increase the air changes rates, we do not need to run the HVAC contractor extra conduit or make dramatic changes, the installation can be finished without cranes.