LNI Swissgas

PREMIUM GAS GENERATORS AND CALIBRATION SYSTEMS LNI Swissgas is a genuine multinational reference in manufacturing premium gas generators, gas mixers and gas calibrators for analytical, industrial and environmental applications: more than thirty years of know-how, 100% in-house production, continuous improvement and a unique R&D at the forefront of the market in order to always offer the best innovative solutions that anticipate and meet the most specific needs of the customers. Our gas generators are produced in Torreglia, Italy, while our gas calibration systems are produced in Versoix, Switzerland. LNI’s premium products are the result of the Swiss passion for perfection and Italian ingenuity and design. LNI Swissgas is ISO 9001 certified. To insure the highest quality, LNI Swissgas has got ISO 17025 accreditation of its Gas Flow Standard laboratory. ISO 14001-2008 certification moreover highlights LNI’s commitment to safeguarding the environment.

Company details

Route des Fayards 243 , Versoix , 1290 Switzerland

Locations Served

Our Distributors

Business Type:
Industry Type:
Monitoring and Testing
Market Focus:
Globally (various continents)
Year Founded:

Our Business : Creator of Gas Mixers and Gas Generators

'High-tech'specialistin gas calibrators, mixers and generators, LNI Swissgas SA is based in Geneva, Switzerland.

For more than 100 years we export our products worldwide. Using the latest technologies to provide high quality products allowing our customers the highest productivity and competitiveness.

Swiss Quality Products

The swiss quality starts with competent manpower.

At LNI Swissgas, electronic specialists, programmers, engineers and commercials come from the best swiss schools. Faithfull to the company, they acquired a large experience in instrumentation and gas analysis. 

To insure the highest quality, LNI Swissgas has got ISO 9001-2008 certification and ISO 17025 accreditation of its Gas Flow Standard laboratory.

We also got the ISO 13485 – 2003 and CE certification for our medical gas mixers.


We are present in all fields where gases and gas mixtures are necessary.

In the laboratories to provide high purity hydrogen, nitrogen and air for gas chromatography.

In the air pollution monitoring network in oder to insure the tracability of measurements  or to supervise the good functioning of the analysers.

At the emission or for the engine test bench in order to enable our clients to comply with the international standards and regulations.

With the Industries to automatize their process and reduce their production costs.



Nowadays on-site gas generation has shown many benefits when compared with pressurized gas cylinders:

  • Economical: no more renting or logistics costs
  • Safe: lower stored volume at a lower pressure
  • Convenience: generation on demand, no more heavy handling
  • Environnement friendly: reduced carbon footprint, use of renewable resources air, water and energy


Air Pollution Monitoring

The measurement of pollutants such as O3, NO, NO2, CO, SO2 and HC to ppb’s and ppm’s require very sensitive analysers. Over the time or according regulations and devices requirements, calibration operations are required for each measured compound.

As low concentration gas standards are expensive, may be unstable or not storable, like for ozone, on-site reference gas generation with Sonimix calibrators reduce costs, logistics troubles and keep analysers performances at their higher level.



The specialists words are 'measuring is good but measuring right is better'.

At the moment the thought of an homologation happen for a new or existing engine development, the precision of gas measures is a crucial point.

In order to fulfill the various normalisations, the Sonimix gas mixers are the essential tools. They provide the precision, reliability ans verstility. Linearity and calibration of test bench become very simple.


Emission and Process

CO2 taxes and regulations oblige power plants and incinarators owners to regulary measure and calibrate the emissions of their installations.

The Sonimix gas mixers allow to fulfil the regulation EN 14181 (with their QAL 1, QAL 2 et QAL 3) and to determine with precision what are the atmospheric emissions.

The Sonimix gas mixer allow to considerably diminish the cylinder's number, lowering the calibration costs as well as the handling efforts.