We solve your exhaust air problems as effectively and economically as possible

LESNI A/S specialises in providing standard technology packages and innovative solutions for waste air purification. Our target is to remove and deplete irritating odour emissions, toxic gases, solvents, dust and aggressive gases.

For the past 37 years, we have designed, supplied and installed more than 1000 air purification plants worldwide. These high-tech installations cover a wide spectrum of air volumes ranging from 50 m³/h to 400,000 m³/h.

LESNI tailor made systems are designed and engineered with customer specification in mind, to meet local and international legislations and standards with great emphasis to safety, reliability and energy conservation.

We provide an extensive range of services, including: Front end design studies, manufacture and supply of purification solutions for waste gas, volatile organic and odour emissions. Thermal and catalytic and regenerative oxidisers, which safely and effectively destroy waste off gases from a diverse range of production processes worldwide.

Solutions for waste gas and air exhaust, treating toxic gases, such as ammonia and acid fumes and many other toxic gas releases. Solutions for special halogenated, VOC abatement and odour control including chemcial gas scrubbing.

Adsorption on activated carbon and recovery of solvents. Rotating and fixed VOC concentrators. DeNOx plants. Soot abatement. Abatement of Ethylene Oxide from filling stations and sterilisation of medical devices. Abatement of controlled substances (CFC, HCFC, HFC and other ODS) from fridge recycling plants. Fat and odour control from meat rendering, sludge drying and waste water treatment plants.