Quality & Compliance

Cleanroom qualification.

Systematically ensure contamination-free production. We support life sciences companies in the comprehensive qualification of their cleanrooms—from planning through IQ/OQ/PQ to ongoing monitoring.

Cleanroom Qualification and Particle Measurement in Accordance with GMP

How do pharmaceutical companies qualify their cleanrooms to be GMP-compliant in accordance with ISO 14644?

Cleanrooms used in the production of regulated products are subject to strict GMP requirements. This presents manufacturers with ongoing challenges:

  • ISO 14644-1 and -2 define the cleanroom classes (ISO 5–9) and inspection intervals, which must be fully documented.
  • GMP Annex 1 (2023) defines EU GMP Classes A–D and requires comprehensive contamination control strategies (CCS) for sterile production.
  • Cleanrooms must be fully qualified (IQ, OQ, PQ) before they are first used in production.
  • Ongoing environmental monitoring (particles, microbiology, differential pressure) must be continuously validated and documented.
Are all of your cleanrooms fully qualified in accordance with GMP and ISO 14644, and is the monitoring program being carried out correctly?
Microbiological environmental monitoring in cleanrooms

Our cleanroom services.

We provide comprehensive cleanroom solutions—from initial design and planning through to long-term, ongoing operation.

Cleanroom Planning & Concept Development
Planning consultation: Classification concept (EU GMP A–D, ISO 5–9), airflow, HVAC design, airlock system, and material flow in accordance with Annex 1 and ISO 14644.
Cleanroom Qualification (IQ/OQ/PQ)
Comprehensive packages: Installation Qualification, Operational Qualification (including performance tests for particulates, air changes, and temperature/humidity), and Performance Qualification under production conditions.
Environmental Monitoring System
Development of monitoring programs: sampling plans for particulate matter and microbiology, definition of threshold limits, trend analysis, and alert/action level management.
Recertification & Troubleshooting
Rapid re-qualification in the event of plant modifications or retrofits. Systematic root cause analysis (RCA) for monitoring deviations and verification of the effectiveness of the CCS.

Frequently Asked Questions About Cleanroom Qualification.

What is the difference between ISO 14644 and EU GMP cleanroom classes?
ISO 14644 defines cleanroom classes ISO 1–9 based on particle concentration. EU GMP Annex 1 defines classes A–D for pharmaceutical areas based on particles and microbiology. Class A corresponds approximately to ISO 5, and Class D to ISO 8.
What is a Contamination Control Strategy (CCS)?
According to GMP Annex 1 (2023), a CCS is the overarching documented strategy for controlling contamination. It encompasses all measures taken in the cleanroom—from monitoring to hygienic work procedures.
How often does a cleanroom need to be re-qualified?
ISO 14644-2 recommends inspections at least once a year. In the event of significant changes (HVAC modifications, structural alterations), re-qualification must be performed immediately.
What is the difference between cleanroom qualification and sterilization validation?
Cleanroom qualification ensures that environmental conditions (particles, microbiology, air changes) are maintained. Sterilization validation demonstrates that the process consistently produces a sterile product. Both are necessary, but they are separate processes.

Ensure the integrity of your sterile production environment.

We can help you ensure that your cleanrooms are fully qualified and assist you in setting up a robust, compliance-compliant environmental monitoring system.

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