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LESNI The Air Purification People


LESNI design, build and supply turnkey solutions for the purification of industrial waste air, process gas emissions, air pollution control. LESNI extensive range of technologies and services offered, includes front end design studies, emission monitoring, preventive maintenance services, as well as manufacture and supply of air pollution control equipment & purification solutions for general waste exhaust and process air laden with inorganic gases or volatile organic compounds (VOC), and odour emissions. Proven technologies offered includes thermal and catalytic oxidizers, and regenerative thermal oxidizers. Solutions treating toxic inorganic gases, such as ammonia and hydrochloric acid, Hydrogen Cyanide (HCN), Ethylene Oxide (ETO) and ozone depleting gases including Freons (CFC) from frdige and freezers demanufacturing processes. Air pollution control packages includes; wet chemical gas scrubbers, adsorption on activated carbon and recovery of solvents, supply of activated carbon and zeolite filters and adsorbers in fixed and regenerating type systems, thermal and catalytic oxidisers, abatement of Ethylene Oxide from the sterilisation of medical devices, including supply of preconditioning and accelerated degassing cells and/or vacuum degassing chambers.


Mr. Sean Maamari



Sterilization Of Medical Devices

The complete safe solution for all Ethylene Oxide emissions...

LESNI "EO ABATOR" innovative system continues to deliver safe and reliable "state of the art" solution to meet current stringent regulation and emission targets for Ethylene Oxide worldwide.

The proven solution uses catalytic conversion to offer a safe and controlled purification, with high destruction efficiency from Ethylene Oxide sterilisation of medical devices processes.

The "balancer/catalytic abator" unique system uses multiple controls and design steps to stabilise, absorb and strip while balancing the expected variations in the incoming quantity of ethylene oxide from various parts of the process. The catalytic abator itself, where the EO is converted into CO2 and H2O, uses selected but highly active low temperature catalyst. The energy costs are substantially reduced by the incorporation of a recuperative heat exchanger.

The EO abatement system is designed to obtain the purification required by the authorities (currently 0.5 - 2 mg/m3) with the highest degree of security and efficiency while treating all potential low fugitive air extract as well as high concentrate vents.

For further information please contact:

LESNI - Sales
Tel: +44 121 439 3278 

For further information please email Lesni A/S Air Purification Engineering

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