Lindabs programme of control valves contain both valves for supply and exhaust air. Control valves are used for supply and exhaust of rather small quantities of air. Control valves are often used in housing, bathrooms, schools etc., where there is no need for an advanced ventilation solution. The control valves are usually mounted directly in the air-duct system, without use of a plenum box.
Lindab have an airvalve for every need.
Više o tome Air Valves