This helps keep cleaner areas protected and prevents contamination from spreading.

What is a Pressure Balancing Test?

It’s a test that checks if positive or negative pressure levels are maintained properly between rooms—so that clean air pushes out and dirty air stays out. This is critical in maintaining the cleanroom’s zoning integrity.

Tools & Methods Used:

1️⃣ Pressure Meters

- Devices like Magnehelic Gauges or Digital Manometers

- Measure air pressure in different rooms or spaces

- Confirms if pressure differences meet the design requirements (e.g., +10 to +15 Pa)

2️⃣ Airflow Meters

- Tools like Anemometers

- Measure the speed and direction of airflow through gaps, vents, or doorways

- Help detect imbalances or reverse airflow

3️⃣ Smoke Test (Visual Flow Check)

- Utilizes a fog or smoke generator for visualization

- Makes air movement visible, showing the actual airflow direction

- Very useful for quick identification of leakage, backflow, or stagnant zones

Why This Test Matters:

- Keeps clean zones protected from contamination

- Maintains airflow direction from cleaner to less clean zones

- Facilitates compliance with ISO, GMP, and WHO regulations

- Prevents cross-contamination between process areas

- Helps identify design or maintenance issues

Need Pressure Testing?

Aimtech Systems LLP provides complete Cleanroom Pressure Balancing Services, including:

- Provides precise pressure and airflow readings

- Visual smoke testing

- SOP-based reporting and documentation