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The air change rate of an iso cleanroom usually depends on the class and purpose of the cleanroom. According to the international standard ISO 14644-1, the air change rate may vary significantly between different classes.
iso clean room Air Change Rates
| iso class | air changes Per Hour (ACH) |
|---|---|
| ISO 5 | Can reach more than 100 times per hour |
| ISO 6 | Usually between 35 and 70 times per hour |
| ISO 7 | Usually between 20 and 40 times per hour |
| ISO 8 | Usually between 10 and 20 times per hour |
Important Considerations
The specific air change rate is also affected by factors such as:
- The design of the cleanroom
- Purpose of use
- Equipment requirements
When designing and operating A CleanRoom, the optimal air change frequency is usually determined based on actual needs and relevant standards. Proper air change rates are crucial for maintaining the required cleanliness levels in different ISO classified Cleanrooms.
