We manufacture and install our ventilation products and air filter systems all around the globe in restaurants, hotels, cruise ships, airports, hotels, hospitals, prisons, exhibition centers and public buildings. Vianen supports and advises in the field of sustainability. Ventilation is important for the safety and comfort of employees and customers. Vianen have the expertise and experience to balance your ventilation needs with optimal "green" ventilation solutions. For example: . The Vianergy II - the latest innovation in energy saving canopies - savings of up to 28% - tested by TNO as per ASTM standards. . Heat/cool recovery systems. . Canopies with our unique water wash misty recycle system. . Ecology units. . The Maestro kitchen management system creates an awareness of energy consumption and identifies maintenance issues of equipment so unnecessary costs are avoided. Our custom designes are produced to mee the most specific requirements : ISO 9001:2008 certification NSF UL CE VCA NFPA Products tested by TNO (Netherlands Organisation for Applied Scientific Research).