Procedure for Airflow Visualization Studies

1) Purpose

The purpose of this SOP is to outline the procedure for conducting airflow visualization studies in cleanrooms to assess and validate the effectiveness of airflows in maintaining specified cleanliness levels.

2) Scope

This SOP applies to all cleanrooms and controlled environments within the facility, requiring periodic airflow visualization studies to ensure compliance with regulatory standards and internal specifications.

3) Responsibilities

Facility Engineering: Responsible for conducting airflow visualization studies.
Quality Assurance (QA) Department: Responsible for oversight and review of study procedures and findings.

4) Procedure

4.1 Study Preparation:
    4.1.1 Review cleanroom classification and layout to identify critical areas for airflow visualization.
    4.1.2 Ensure all HVAC systems and filters are operational and in compliance with maintenance schedules.

4.2 Tracer Release:
    4.2.1 Prepare and release tracer particles or smoke generators at predetermined locations within the cleanroom.
    4.2.2 Monitor and document the release process to ensure uniform distribution of tracers.

4.3 Visualization and Recording:
    4.3.1 Observe and record the movement of tracer particles or smoke under steady-state conditions.
    4.3.2 Use appropriate visualization tools (e.g., laser light sheets, thermal imaging) to track airflow patterns and turbulence zones.
    4.3.3 Document findings with photographs, videos, or written descriptions.

4.4 Data Analysis:
    4.4.1 Analyze recorded data to assess