Class 100 Cleanroom is the third classification type of the FED-STD-209 classification standard, the Class 100 Cleanroom corresponds to the Class 5 Cleanroom of the ISO standard.
The maximum allowable particles for particles for a Class 100 Cleanroom are below:
0.2 µm : 750 per cubic foot
0.3 µm : 300 per cubic foot
0.5 µm : 100 per cubic foot
Other requirements for Class 100 Cleanroom Classification include :
- Rasied floors installed at optimal
- Purification of external air with HEPA filters
- Installation of gasketed ceiling grid
- Minimum of 400 to over 480 air changes per hour
