Clean Booth (Down Flow Booth)

Verify airflow velocity uniformity across the work surface using a calibrated anemometer at multiple measurement points during initial installation and periodic validation.

Why: Uniform airflow ensures consistent particle removal efficiency across the entire work zone.

Monitor pressure drop across HEPA filters monthly and maintain log of readings to predict filter replacement timing before performance degradation.

Why: Proactive filter maintenance prevents gradual loss of cleanliness levels that could compromise experimental results.

Allow the booth to operate for at least 15-20 minutes before beginning work to establish stable airflow patterns and remove any particles disturbed during startup.

Why: Initial purge time ensures optimal cleanliness levels are achieved before introducing materials or beginning procedures.

If particle counts begin to increase, first check for damage or gaps in curtain seals before assuming filter failure.

Why: Seal integrity problems are more common than filter failures and can be resolved without costly filter replacement.

Document particle count measurements at multiple locations within the booth and maintain records for trend analysis over time.

Why: Historical data helps identify gradual performance changes and supports regulatory compliance documentation requirements.

Ensure electrical connections meet local codes and install appropriate circuit protection before initial system startup.

Why: High-power FFU systems require proper electrical safety measures to prevent equipment damage and personnel hazards.

Position materials and equipment to avoid blocking airflow patterns, keeping the center of the work zone clear for optimal particle removal.

Why: Airflow obstruction creates turbulence zones where particles can accumulate rather than being swept away by the laminar flow.