The company's purpose is to design and install ventilation and air conditioning systems as well as their insulation. Service and maintenance activities in this field. The company may establish branches and subsidiaries in Switzerland and abroad and participate in other companies in Switzerland and abroad, as well as conduct all business directly related to its purpose. The company may acquire, encumber, sell and manage real estate in Switzerland and abroad. It may also provide financing for its own account or for third-party account, as well as grant guarantees and sureties for subsidiaries and third parties.