ISO 14644 cleanliness classes – cleanroom
ISO 14644 is an international standard for cleanrooms. It sets permissible levels of airborne particles, requirements for air filtration and methods for monitoring and validating room parameters. We design, build and validate cleanrooms (CG3) to ISO 14644.
What does a cleanliness class mean?
A cleanliness class to ISO 14644 states how many particles of a given size may be present in one cubic metre of air. The classes are numbered from ISO 1 to ISO 9: the lower the number, the cleaner the air. The class is chosen to suit the product, the process and the customer’s requirements.
Cleanroom (CG3) or clean room (CG2)?
Not every assembly process needs a cleanroom. VDA 19.2 also provides for a clean room (CG2). A cleanroom (CG3) is needed where control of airborne particles matters, for example in electronics and microelectronics and in the pharmaceutical and medical industries. We choose the right solution after analysing your needs.
What does a cleanroom project include?
- needs analysis and choice of the cleanliness class,
- HEPA or ULPA air filtration,
- integration with HVAC and parameter control automation,
- validation and cleanliness tests to ISO 14644,
- monitoring of temperature, humidity and airborne contamination with PURESensors,
- staff training on working in cleanrooms,
- service and technical support after completion.
Frequently asked questions
What does ISO 14644 specify?
Air cleanliness classes for cleanrooms: permissible levels of airborne particles, filtration requirements and methods for monitoring and validation.
How do you choose the cleanroom class?
After analysing your needs: the product, the process and the customer’s requirements. For the chosen class we design HEPA or ULPA filtration, HVAC and monitoring.
Do you validate the cleanroom after construction?
Yes. We carry out validation and cleanliness tests to ISO 14644, train staff and provide service after completion.
Let’s talk about your project
Tell us what you need — we will find the right solution and prepare a quote.