It checks if unwanted air, dust, or particles are entering the cleanroom through leaks in walls, doors, filters, or equipment. By identifying and fixing these leaks, this test ensures that only clean, filtered air remains inside the controlled environment.

🔍 What is the Contamination Leak Test?

The Contamination Leak Test helps identify and address air leaks in critical cleanroom areas. Even a small leak can introduce contaminants from the outside, compromising the cleanroom’s air quality and its regulatory compliance. This test ensures that airflow remains controlled and contamination risks are minimized.

How the Test is Done:

1️⃣ Introduce Test Particles

A test substance such as smoke, aerosol, or a tracer gas is released near potential leak points (like doors, windows, and filter seals).

2️⃣ Check for Leaks

A particle counter or airflow tester is used to detect if unclean air is entering the cleanroom from outside. This helps identify the precise source of any leaks.

3️⃣ Pass or Fail?

Pass – If no contamination is detected during the test, it means the cleanroom is properly sealed.

Fail – If leaks are found, sealing or repairs are required to restore the cleanroom’s integrity.

Equipment Used:

• Smoke Generator (Fog Machine) – Used to visualize the flow of air and identify leaks.

• Aerosol Photometer – Detects particles leaking from HEPA filters.

• Particle Counter – Identifies and measures the level of unwanted particles in the air.

Why is the Contamination Leak Test Important?

Prevents contamination – Blocks the entry of unwanted particles, dust, and air, maintaining a pure and uncontaminated cleanroom environment.

Maintains compliance – Helps meet ISO standards, GMP guidelines, and other regulatory requirements.

Protects sensitive processes – Safeguards pharmaceutical, biotech, semiconductor, and other high-precision industries where even small contamination can have major consequences.

Ensures cleanroom integrity – Ensures that cleanroom airflow is properly balanced, and contaminants stay outside.

Need Cleanroom Validation Support?

At Aimtech Systems LLP, we offer expert Contamination Leak Testing along with:

• Accurate testing with advanced equipment

• Detailed validation reports

• Trained engineers with extensive experience in cleanroom validation