Description

We all understand the dear cost of critical Cleanrooms.    The higher the class, the more expensive the cost. The bigger the area , the higher the cost. Hence, grade and size of Cleanroom becomes critical issues to consider once cleanrooms  are  built.

So come the application of Fan Filter Unit ( FFU )

 

The most important factor of FFU is set by its smoothness of operation. Under the continous mode of running ( average of *6 hours / day ), the whole body of the FFU  is put  under  the repeated vibrations. This calls for a rigid and well anti vibrated structure of design.     

 

The second important factor is  set  by  the noise  of  the Fan.

With continuos running mode, the noise  caused  by  the Fan must be at a low threshold of *0 Decibel.

 

The third important factor is set by the  coplanarity  between the surfaces of HEPA gasket and the surface of  the    bottom  flange of FFU. This is to prevent the air leaked out of HEPA’s covering area.