The company's purpose is to provide consulting, planning, installation and maintenance of ventilation and air conditioning systems; cleaning and hygiene of ventilation and air conditioning systems; development and production of all kinds of building technology articles; participations; acquisition, financing, management and disposal of properties, patents and licenses. The company can establish branches and subsidiaries in Switzerland and abroad and participate in other companies in Switzerland and abroad, as well as 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 provide financing for its own account or for the account of third parties, as well as provide securities for liabilities of affiliated companies.