Laminar Flow Unit (Clean Bench) Services

TSS offers comprehensive testing, certification and maintenance of laminar flow clean bench units. Our skilled technicians are authorized to perform warranty repairs for all major equipment manufacturers. All testing is performed in accordance with established TSS standard operation procedures [SOPs], which are updated to remain compliant with federal and international safety guidelines, current good manufacturing practices [cGMPs] and quality assurance systems.

Unidirectional (Laminar) Flow Clean Bench Units [LFUs] are tested in accordance with IEST.

Primary tests performed include:

• HEPA filter integrity testing - demonstrates that no contamination will enter the work area [through the supply filter]
• Airflow velocity profile - documents that the air in the work area is unidirectional and functioning as designed, preventing cross contamination
• Fluorescent light testing - establishes that the fluorescent lights are working at a level that will not contribute to worker fatigue

Optional tests include:

• Non-Viable Particle Counting - performed in accordance with ISO 14644 reports the amount of particulate, if any, there is in the hood.
• Vibration testing - assures that product is not subject to damage due to vibration
• Sound testing - verifies that using the hood will not contribute to worker fatigue