Air change rate of 100,000 times per hour
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What is the air change rate for a Class 100 clean room?
The question isn’t very clear, but it’s roughly like this: a Class 100,000 environment corresponds to **M6.5 per unit, and non-unidirectional airflow is generally used in cleanrooms of Classes 6–9. The air change rate in a Class 6 clean room is less than 50 times, while in a Class 7 clean room it is generally less than 15 times.
Let’s discuss this with the person upstairs: Is the dust particle count at level 100000 indeed 7.5? The air change rate should be >=15 times per hour, right?； Is level 10,000 equivalent to level 6.5? The air change rate should be >=20 times per hour, right?