With an ever increasing environmental awareness and the common global goal to reduce emissions and pollutions, Vianen has a responsibility of contributing through the filtration of cooking fumes arising from commercial kitchen applications. In order to effectively filter all the grease, gaseous and other particles, proper filtration of the extracted fumes from these commercial cooking appliances is required. A Vianen Ecology Unit is meant as a second stage filtration system, when a proper kitchen hood suitable for the desired appliance comes in first. A Vianen Ecology Unit can be located on for instance rooftops, inside parking garages or above false ceilings. It shall be custom made according to the situation at hand. The situation will be determined on variables such as; type of cooking (regular, charcoal grills, spicy food etc), kitchen hoods (existing or to be installed), location of the Ecology Unit, ducting etc.