What is a Fan Filter Unit (FFU) ?

What is a fan filter unit? You are wondering the structure,the specifications of FFU, and theadvantages it offers for cleanroom.Let's find the answer with Anner Parker - Hepa Cleanroom Filter

What is FFU?

FFU (Fan Filter Unit) is an air cleaning device, usea to provae cleulI ,n u ca:tlilienaetom lnof semiconductors, liquid crystal diodes, etc. Fan filter unit is installed on the grla ceng systelhm"large cleanrooms, the number of equipment needed ranges from hundreds to thousands.

Why do we need fan filter unit(FFU)?

1.To reduce operating costs by saving energy

2.To reduce construction costs because of thin, light, and compact structure of

fan filter unit

3.To reduce the initial cost of the overall cleanroom design like the noise ...

-> FFU has been developed to comply with requirements for cleanroom construction,operations,and maintenance.

Fan filter unit structure

1.Housing

The FFU housing is made of galvanized steel, powder-coated steel, or stainless steel SUS 304.Thehousing material can be chosen according to customer's requirements

2.Fan

lt sucks and blows the air towards HEPA filter.

3.FFU Filter

The filter used for FFU is HEPA filter or ULPA filter.This is the most important part of FFU,which filters the air and creates a fresh and clean environment.

4.Controller switch

Fan filter unit is equipped with a 3-level switch for speed control, and on/off switch. There are 3levels of air velocity (low, medium, and high)

Fan filter unit working principle

● The air is pulled in from outside by the fan.

● Then it is forced through the HEPA filter.

● HEPA filter traps the dust, bacteria and airborne particles, the filtered air goes out.

● The fan filter unit is unducted. Most of the time, fan filter unit pulls air from the ceiling plenum,pulls it out before it goes to space

What are the advantages of a cleanroom having FFUs?

1.Construction time can be shortened

2.Cleanliness level from class 1 to class 1000 can be set differently in each area

3.Because the opposite part of the ceiling has low pressure, the potential for this leakage is low

4.The arrangement of FFU partly decides the cleanroom construction method

5.The air velocity can be adjusted in each area

6.Flexible increase or change of the cleanroom is possible due to the arrangement of the fan filter

So ,if you are interested, please contact us