Learn All About Cleanrooms | Classification & ISO Standards

Learn All About Cleanrooms | Classification & ISO Standards

A cleanroom is a room in which viable & non viable particle count, temperature, humidity & differential pressure is maintained within standard and defined ranges.In this article you will learn all about the cleanroom classification in pharma.

Cleaning is a strict requirement for cleanrooms and it is necessary to maintain their defined cleaning level all the time.Cleanrooms play a critical role in the manufacturing of pharmaceutical products.

  • Cleanroom classification in pharma is based on the size of particles and the number of particles per cubic meter of air.
  • There are specified limits of particle count,microbial counts and air changes for the cleanrooms.

Cleanroom Classification In Pharma

Cleanroom classification in pharma is per following standards,

  • ISO 14644-1
  • Federal Standards (FS 209)
  • European Standards


According to ISO 14644-1

Classification of cleanrooms ap per ISO 14644-1 is as follows

  1. ISO 1
  2. ISO 2
  3. ISO 3
  4. ISO 4
  5. ISO 5
  6. ISO 6
  7. ISO 7
  8. ISO 8
  9. ISO 9

In ISO there are 9 cleanroom classes, ISO 1 to IOS 9.ISO 1 is the cleanest from all classes of ISO and ISO 9 is least clean or dirtiest in all ISO classes but cleaning level of ISO 9 is superior than a regular room. In pharmaceutical Industries following ISO, classes are generally required

  • ISO 5
  • ISO 6
  • ISO 7
  • ISO 8

According to FS 209

According to the federal standard, FS 209 Cleanrooms are classified as,

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Zawaq Ali

Pharmacist | Quality Assurance | Poet

3 个月

Very informative sir

Hajer Ali

Regulatory Affairs Specialist

3 个月

Useful tips

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