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Microelectronics requiring extreme purity tolerate less than 1 ppb of impurity (0.0000001%) in its process and carrier gases. For this industry, ULTRALTM, Air Liquide’s line of cryogenic purifiers, has been designed to purify helium, hydrogen, nitrogen or argon by reversible cryogenic trapping on a high performance adsorbent bed.

Why choose us?

  • 01

    Our expertise

    Our experts listen to your needs and support you at each step in your project, supplying the most appropriate technology bricks.

  • 02


    The manufacture of our cooling units, liquefactor, and purifiers has been standardized in order to promote industrial processes and control costs.

  • 03

    Our industrial challenges

    The first, the biggest, and the most powerful in the world: for every challenge, a solution. Passionate, we are ready to tackle every challenge.