Abstract: An additive manufacturing system having at least one powder based additive manufacturing machine having a build chamber, at least one stationary powder storage container, and a powder feeding device for feeding powder from the at least one powder storage container into the build chamber. The build chamber, stationary powder storage container and powder feeding device form a part of a powder handling system, which is hermetically sealable in a powder-tight manner and to which a movable powder storage container is connected. The powder handling system selectively feeds powder from the movable powder storage container to the stationary powder storage container or removes powder from the build chamber in the hermetically sealed state. A method for feeding powder into and removing powder from a build chamber of at least one additive manufacturing machine, where the feeding and the removal of the powder takes place within a hermetically sealable powder handling system.

Abstract: A resuscitation arrangement and method for resuscitation of humans, preferably infants, wherein said arrangement for resuscitation comprises a mask adapted to fit over the nose and mouth of said human, monitoring arrangements adapted to monitor at least one parameter chosen from flow, volume, leakage, and pressure within said mask and a digital module adapted to enable measurement of at least one of the parameters. The monitoring arrangement comprises at least one passive sensor component and an active sensor component, wherein the digital module is adapted to be detachably arranged as a part of said mask and the passive sensor component is arranged within the mask and the active sensor component is arranged in the digital module.