New or renovated space
Establish baseline performance after construction, renovation, system modification or commissioning.
Cleanroom certification
Cleanroom Performance Certification
Certification testing for controlled environments, with a scope matched to your facility, operating state and documentation requirements.
Request a Scope ReviewService overview
Performance evidence—not a box-checking exercise.
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.
Scope of work
What this service may include.
The final test or work plan is built around your facility, applicable requirements, operating conditions and the decision the report must support.
Airborne non-viable particle counting
HEPA filter integrity testing
Airflow volume, velocity and air changes
Room pressure relationship verification
Airflow visualization and recovery testing
Temperature and relative humidity mapping
When to call Micron
Common reasons clients engage this service.
Early engagement helps clarify prerequisites, reduce failed visits and prevent important requirements from being discovered at closeout.
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.
Inspection readiness
Organize current testing evidence and identify gaps before an internal, customer or regulatory review.
Specialist services
Explore the right scope for your facility.
These focused pages explain typical test elements, preparation needs and reporting considerations for common applications.
Pharmaceutical manufacturing
Pharmaceutical Cleanroom Certification
Certification testing for pharmaceutical production and support environments.
View service Compounding environmentsUSP <797> Cleanroom Certification
Testing and documentation support for pharmacy compounding environments.
View service Hazardous drug environmentsUSP <800> Testing Support
Environmental testing support for hazardous drug handling spaces.
View service Cleanroom classificationISO 14644 Cleanroom Certification
Classification and performance testing for controlled environments.
View service Installed filter testingHEPA Filter Integrity Testing
Installed-filter leak testing, documented findings and retest support.
View serviceOur process
A clearer path from scope to closeout.
Every project is different, but the discipline behind reliable results is consistent.
Scope review
Confirm facility conditions, required methods, acceptance criteria, schedule and reporting expectations.
Readiness planning
Identify documents, access, operating states and prerequisites needed before mobilization.
Field execution
Perform the agreed work with calibrated instruments, documented conditions and active coordination.
Reporting and follow-through
Present results, observations and deficiencies in a form the responsible teams can act on.
What you receive
Documentation designed for the next decision.
A report is valuable only when the owner, quality team, engineer or contractor can understand what was tested, what the result means and what remains unresolved.
Discuss Your Reporting NeedsDefined 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
What project teams ask before scheduling.
Exact requirements vary. These answers provide a starting point for defining your facility-specific scope.
How 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.
What happens when a room fails?
We document the result and relevant field observations, then help the project team separate likely airflow, filtration, controls, maintenance or operational causes. Corrective work and retesting are scoped separately when needed.
Related technical guidance
Build a better-informed testing plan.
Cleanroom certification · October 5, 2026
ISO 14644 Is Only the Starting Point: Is Your Contamination-Control Program Inspection-Ready?
Cleanroom classification is essential, but it is only one part of a defensible contamination-control system.
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Laboratory safety · October 13, 2022
Fume Hood Testing and Certification
Why fume-hood design, airflow, alarms, inspection and periodic performance testing matter for laboratory personnel protection.
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Technical guide · May 13, 2020
Understanding Clean Room Classifications
A detailed comparison of Federal Standard 209E, ISO 14644-1, FDA aseptic-processing guidance, EU GMP classifications and ICH Q7 contamination-control expectations.
Read articleLet's discuss your facility