Cleanrooms: Commissioning and Qualifications


Cleanroom qualification requirements refer to the processes and criteria used to ensure that a cleanroom facility meets the necessary standards for cleanliness, environmental control, and performance. Cleanrooms are used in various industries, such as pharmaceuticals, microelectronics, biotechnology, and aerospace, where a controlled environment is essential to prevent contamination and ensure product quality. Qualifying a cleanroom involves several steps and considerations:

  • Classification: Cleanrooms are typically classified based on the number of airborne particles of a specific size allowed per cubic meter. International standards, such as ISO 14644 or the U.S. Federal Standard 209E, define the classification. Determine the required classification for your specific application.
  • Design and Construction: The cleanroom must be designed and constructed to meet the classification requirements. This includes selecting appropriate materials, airflow systems, and filtration systems to control particle counts, temperature, humidity, and other environmental parameters.
  • Commissioning: Before the cleanroom becomes operational, it must undergo commissioning, verifying that all systems are installed and functioning as designed. This includes testing air handling systems, filter integrity, pressure differentials, and other critical parameters.
  • Performance Testing: Performance testing is essential to ensure the cleanroom meets the required cleanliness and environmental control standards. Common tests include airborne particle counts, air change rates, airflow patterns, temperature, humidity, and pressure differentials.
  • Certification: A certification report is issued once performance testing is complete and the cleanroom meets the required standards. This report details the cleanroom’s classification, test results, and compliance with relevant standards.
  • Maintenance and Monitoring: Cleanrooms require ongoing maintenance and monitoring to ensure they continue to meet the necessary standards. Regular testing and monitoring are essential to verify that the cleanroom maintains its classification.
  • Personnel Training: Proper training of personnel is crucial to maintain cleanliness within the cleanroom. Staff should understand and follow the protocols and procedures for entry, gowning, and working within the cleanroom.
  • Documentation: Detailed records of all cleanroom qualification activities, including design and construction specifications, commissioning and performance testing reports, and maintenance records, should be maintained and updated regularly.
  • Change Control: Any changes to the cleanroom, equipment, or processes must be carefully controlled and assessed to ensure that they do not compromise the cleanroom’s classification and performance.
  • Regulatory Compliance: Depending on the industry and the products or processes involved, cleanrooms may need to comply with specific regulatory requirements. It’s essential to ensure that the cleanroom meets all relevant regulatory standards and guidelines.

Cleanroom qualification is a comprehensive process, and it requires the involvement of professionals with expertise in cleanroom design, construction, and validation. The specific requirements can vary based on the industry and the application of the cleanroom, but the overarching goal is to maintain a controlled environment that minimizes contamination and meets the necessary standards.

Cleanrooms require careful design, construction, and maintenance to meet standards. Commissioning and qualification ensure the cleanroom operates as intended. GxP Cellators specializes in cleanrooms for the life-sciences industry and offers assistance in setting up manufacturing facilities. Contact us for help with your site readiness program at

by admin

I am a seasoned GxP expert and the founder and CEO of GxP Cellators, a consulting firm that provides GxP advisory and auditing services to clients across the globe. My mission is to help clients achieve excellence in quality, compliance, and remediation, and to foster a robust quality culture in their organizations.

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