Compressed Helium Gas & Liquid Helium

Leak Detection

Atmospheric contaminants can have a negative impact on a customer’s manufacturing or cleaning process. Helium can be used to detect leaks and prevent contamination. Helium is applied to the suspected leak area and because it’s non-toxic, non-hazardous, inert and has the smallest molecular size, it easily penetrates even the smallest leaks.

From a safety perspective, leak testing can be used to prevent hazardous gases and liquids from escaping the containment system and entering the work environment. The reverse situation, where external gases or liquids are allowed to enter the containment system is a process integrity reason for leak testing.

Helium for leak testing can also be used for equipment reliability which monitors system leak integrity which helps keep contaminants out. This keeps the system running smoothly by minimizing internal contaminants and related adverse chemical reactions which can lead to system problems and downtime.

Helium leak detection can be used in a variety of applications such as air conditioning and refrigeration units, lamps and lighting tubes; electrical equipment; semiconductor components; automotive parts; packaging (food, aerosol); vacuum systems; pressure vessels, gauges, regulators; compressors.

We offer a variety of technical services, gas-based solutions and a full line of industrial gases—helium, oxygen, nitrogen, hydrogen, argon and various gas blends for small and large volume users.  Talk to Air Products, our applications engineers can work with you to understand your operation and recommend improvements that can help you optimize gas use and improve product quality.

Product Name Description/Benefits Downloads


Helium (He) is a colorless, odorless, inert gas delivered cryogenically that reaches ppb levels of purity when high purity helium is passed through a purification system.


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