Integrated door closer and freely movable technology The EASY OPEN function reduces resistance enabling effortless operation by practically anyone of any age. The door remains freely movable at all times and is not automatically closed. A comfort feature which facilitates door access in high-traffic areas in particular. Reliable safety is ensured by connecting a smoke detector panel which closes the door in the event of a fire. It can however still be opened so as not to prevent any possible escape routes.