Fan Filter Unit Ffu

Fan Filter Unit Ffu is installed on the grid ceiling system. In large cleanrooms, the number of equipment needed ranges fromhundreds 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.

What are the advantages of a cleanroom having ffu's?

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 astrofan ffu partly decides the cleanroom construction method

5. The air velocity can be adjusted in each area6. Flexible increase or change of the cleanroom is possible due to the arrangement of the fan filter unit.

Fan filter unit - FFU installation

Step 1: Prepare the ladder

Step 2: Check the fan and the filter

Step 3: Install the fan on the ceiling

Step 4: Install HEPA filter

Fan Filter Unit Ffu 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.

• Most of the time, fan and filter unit pulls air from the ceiling plenum.