Cleanroom Certification in Houston, TX

Houston combines a massive petrochemical and energy-processing base with one of the largest concentrations of hospitals, research institutions, and biomanufacturing facilities in the country. GENTAB certifies cleanrooms and controlled environments for facilities across the Houston metro to ISO 14644 standards — the same nationwide certification program documented on our core cleanroom certification page, scoped to the specific rooms, systems, and cleanliness classifications each facility requires.

Whether a Houston-area facility is commissioning a new suite, requalifying after a shutdown or turnaround, or maintaining a routine recertification schedule, our technicians measure airborne particle concentration, scan filtration for integrity, verify pressure cascades, and document air change and recovery performance. Reports are audit-ready and mapped to your specifications, supporting quality, EHS, and facility teams working under process-industry and life-sciences oversight.

Airborne Particle Classification: Particle count measurement and statistical analysis to determine and document ISO 14644-1 cleanliness classification at rest and in operation.

HEPA / ULPA Filter Integrity Testing: Aerosol challenge (PAO) scanning of installed filters and housings to detect leaks, bypass, and media damage before they compromise the space.

Air Change Rate & Recovery: Supply airflow measurement, air change rate calculation, and recovery testing to confirm the room clears contamination within its required time.

Room Pressurization Verification: Differential pressure mapping across doors and adjacencies to confirm correct cascade and protect critical spaces from cross-contamination.

Airflow Visualization & Uniformity: Smoke studies and velocity uniformity testing for unidirectional flow zones, documenting that airflow patterns sweep contaminants as designed.

Certification Documentation: A complete, audit-ready certification package referencing test methods, instrumentation, acceptance criteria, and pass/fail results per room.