Title: HVAC Cleanroom Design Calculation Explained

Cleanroom HVAC engineering is not an easy thing. It takes a mix of engineering skills, understanding the particle-generating potential of the process, and experience. The amount of air is different in an ISO Class 6 and ISO Class 8 cleanroom. This means that the HVAC system must be capable of conditioning more than double the air. However, classification alone isn’t sufficient for calculating the airflow. The standard ISO 14644-1:2015 does not specify the air changes per hour (ACH) for each cleanroom class because it depends on many factors. The ACH is the number of total replacements of a room's air in one hour, and the ISO 14644-1:2015 only tells you the result that you must aim for: the maximum concentration limits for particles.

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Company  Product  Process  Other  Subjects  Event  Event  Date  Location  Publication  Publication  Date Text  Descriptor
  • Design

  • Engineering

  • HVAC





  • Cleanroom Technology


  • 8/6/2019


  • Article