The company's purpose is to assemble ventilation systems and controlled residential ventilation (KWL) as well as provide their service and maintenance. Provision of services of all kinds in the areas of property and building maintenance, as well as dry ice cleaning. The company can establish branches and subsidiaries in Switzerland and abroad, participate in other companies in Switzerland and abroad, and conduct all business that is directly or indirectly related to its purpose. The company can acquire, encumber, sell and manage real estate in Switzerland and abroad. It can also arrange financing for its own account or for the account of third parties, as well as provide security for the liabilities of affiliated companies.