Stage 1
SERVICE / 04Uniform Air Delivery
Air Velocity Test
Velocity measurement across terminal filters and critical work zones to identify non-uniform delivery and turbulence risks.
Arrange a validation visitMeasured
Documented
Documented
Why this test matters
Evidence for confident environmental control.
Periodic air-velocity testing monitors uniformity across a filter and relative to adjacent filters. Measurements are taken at defined points and distances so the result can support airflow balancing, contamination-risk review and recovery-performance decisions in critical areas.
Actionable velocity data for balancing, maintenance and filter-performance decisions.
Typical scope
Defined around the room, risk and required evidence.
Plan velocity testing after balancing, filter replacement or major room changes, and before airflow visualisation where the protocol requires a confirmed baseline.
- Unidirectional and mixed-flow cleanroom zones
- Terminal filter velocity and calculated air volume
- Uniformity across individual and adjacent filters
- Air changes per hour where room data is available
A disciplined path from measurement to report.
Stage 2
Take multi-point readings with a calibrated instrument
Stage 3
Calculate average velocity, variation and airflow quantity
Stage 4
Document findings, balancing observations and retest needs
Validation framework
Testing aligned with the operating context.
The final protocol is confirmed against the facility classification, process risk and applicable quality requirements.
- Terminal-filter face
- Critical work surface
- Recovery-performance review
Results your engineering and quality teams can use.
Every assignment is structured for review, traceability and practical follow-through.
Marked measurement grid
Individual readings and calculated averages
Uniformity and airflow assessment
Balancing recommendations and signed report
Need a clear validation scope?
Discuss your requirement