Helium (He)

What is helium?

Helium is a noble, colourless, odourless, inert gas supplied in liquid or gas form depending on the application. Its name comes from the Greek word helios ("sun"). It is the second most abundant element in the universe.

Its most well-known applications include:

  • Welding and metallurgy. It is used as an inert shielding gas for metal arc welding. It is also used mixed with other gases, such as argon, to weld stainless steel and aluminium.
  • Balloons. Given its low density (it is lighter than air), helium gas is perfect for inflating balloons, zeppelins, and airships. It is also used in nuclear reactors and to launch rockets.
  • Magnetic resonance imaging. Liquid helium at -269°C allows magnet superconductivity and the creation of the magnetic field that generates the image.
  • Diving. Helium is combined with nitrogen and oxygen to produce breathing gas for diving because of its low molecular weight and, as it is an inert gas, it does not react with other substances.
  • Barcode reader. Some shops and supermarkets use helium-neon lasers in barcode readers, a type of low-powered gas laser that emits a red beam.
  • Other applications. Helium is also used in leak detection, manufacturing of special glasses, reactors and chromatography.

Product details

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Other gases supplied by OXIGEN salud


A colourless and odourless gas used in metal welding and as a lighting and heat source.
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Applied in healthcare and used in ventilators, anaesthesia, resuscitation and as a vector for inhalators.
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Argon is a gas used in modified-atmosphere food packaging, welding, chromatography and excimer lasers.
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Carbon dioxide

It is supplied in gas, liquid, or solid forms, depending on the intended application. Used in the healthcare and food sectors.
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A gas used as an initiator, a shielding agent in welding, or to hydrate fats in the food industry.
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Made up of compressed and homogenised gases they are useful in the healthcare, food and industrial sectors.
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Supplied in gas or liquid form, depending on the intended application, it is used in the industry, food, and healthcare sectors.
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A 50 % oxygen and 50 % nitrous oxide mixture with analgesic properties.
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Nitrous oxide

Applied in different procedures of the food and industry sectors, as well as in anaesthesia and cauterization in healthcare.
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Supplied in gas or liquid form, depending on the application, it is widely used in healthcare and in industry and food sectors.
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