When a cleanroom fails its particle count certification, the pressure to find a solution is immense. Troubleshooting these complex systems requires a logical approach based on the Selection and Application of your filtration hardware. Start with the Pressure Differential. If the room has lost its positive pressure, the culprit is often a failing FFU motor or a severely clogged HEPA filter. Check our computerized control system for error codes or units that are drawing excessive current—this often indicates a mechanical obstruction or a motor reaching the end of its life.
If pressure is fine but particle counts are high, the issue is likely a Bypass Leak. Inspect the HEPA filter gaskets and the PU sealant for cracks or improper seating. In spray booth applications, check the F5 Ceiling Filters for “Shadowing”—uneven dust patterns that indicate airflow turbulence. As a source factory with 20+ years of technical data, we find that 80% of contamination issues stem from either neglected pre-filters or improper filter installation. By systematically checking the integrity of each filtration stage—from the intake G4 to the terminal HEPA—you can quickly restore your facility to its required ISO Class and get your production line back on track.
