New or renovated space
Establish baseline performance after construction, renovation, system modification or commissioning.
Cleanroom classification
ISO 14644 Cleanroom Certification
Classification and performance testing for controlled environments.
Discuss This ServiceWhy this service matters
Define the requirement before arriving in the field.
Cleanroom certification should do more than produce a pass/fail certificate. A useful program establishes what is being tested, the room operating state, the acceptance criteria, the instruments and methods used, and how the results relate to your process and quality system.
Micron works with facility, engineering and quality teams to define a defensible scope before testing begins. Field results are organized so teams can distinguish an isolated test failure from a broader airflow, filtration, controls or operational issue—and decide what to do next.
Service planning
A defined scope and a prepared facility.
Final methods and acceptance criteria depend on your facility, equipment, operating state and applicable requirements.
What the scope may include
Classification requirements
Particle counting scope
Agreed performance tests
Documentation and results
Preparing for the visit
Target room classification
Occupancy state
Facility access and readiness
Testing matrix or protocol
Performance considerations
Conditions that shape the result.
Understanding the surrounding system helps prevent a test result from being interpreted without the context needed to correct it.
Periodic recertification
Confirm that the room continues to meet the defined classification and performance requirements.
Investigation or drift
Evaluate pressure alarms, particle excursions, filter concerns or unexplained environmental trends.
Clear documentation
Results your team can use.
Before the visit, we align the report contents with the people who will review it. This reduces ambiguity about tested conditions, acceptance criteria, deficiencies and retest status.
Defined test matrix tied to rooms, operating states and required criteria
Instrument and calibration identification with traceable field results
Room-by-room results, deficiencies and documented observations
Final report structured for facility, engineering and quality review
Frequently asked questions
Plan the visit with fewer surprises.
View the complete Cleanroom Certification capabilityHow often should a cleanroom be certified?
The interval depends on the governing standard, room classification, process risk, facility procedures and regulatory expectations. Periodic testing should also be reconsidered after significant system changes, filter replacement, construction or adverse trends.
Is ISO particle classification the same as full cleanroom certification?
No. ISO 14644-1 addresses classification by airborne particle concentration. A facility-specific certification scope may also include HEPA integrity, airflow, room pressure, recovery, temperature, humidity and other tests.
What operating state should be used?
The agreed state—at-rest, operational or another defined condition—must be established before sampling. Occupancy, equipment operation and room preparation can materially affect the result.
Let's discuss your facility