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Jason@cleanroomequips.com
Thanks for the detailed information! Here is a summary of the air changes per hour for each iso class of cleanroom:
ISO1
Air changes can reach 800 or more per hour.
ISO2
Air changes are typically between 540 and 780 per hour.
ISO3
Air changes are typically between 360 and 540 per hour.
ISO4
Air changes are typically between 300 and 540 per hour.
ISO5
Air changes can reach as high as 240 to 480 per hour.
Air changes are typically between 50 and 60 per hour.
Air changes are typically between 25 and 35 per hour.
ISO8
Air changes are typically between 10 and 20 per hour.
ISO9
The number of air changes per hour is generally between 5 and 10.
These values reflect the frequency of air changes required in cleanrooms at different cleanliness levels to ensure that the appropriate clean environment is maintained. When designing and operating a modular cleanroom, it is very important to select the appropriate number of air changes to meet specific application requirements and standards.
