Cleanroom Certification in Seattle, WA

Seattle's metro area combines major cloud and data center infrastructure with a growing life-sciences sector and a long-established aerospace manufacturing base. GENTAB certifies cleanrooms and controlled environments across the region to ISO 14644 standards, and supports the same facilities with large-scale TAB and data center air balancing where mechanical system performance is equally critical.

Our technicians verify airborne particle classification, HEPA/ULPA filter integrity, airflow uniformity, and pressurization for Seattle-area cleanrooms serving biotech, precision manufacturing, and controlled research environments, then document results in an audit-ready certification package. Programs range from one-time certification to scheduled recertification that keeps facilities in a continuous, documented state of control.

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.