how many air changes per hour in clean room

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.

• iso6

  Air changes are typically between 50 and 60 per hour.

• iso7

  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.