An emergency oxygen supply device for aircraft inhabitants, comprising - an oxygen source, - an oxygen mask connected via an oxygen line to said oxygen source, - a container, wherein said oxygen mask is positioned inside said container, - a releasable cover lid (2, 102, 202, 302) mounted to the container to close an opening of said container in a first position of said cover lid (2, 102, 202, 302) and to open said opening in a second position, - a latch mechanism mounted to said container, said latch mechanism comprising a latch (10, 110, 210, 310) which is switchable from a first position wherein said latch (10, 110, 210, 310) holds said cover lid (2, 102, 202, 302) in the closed position to a second position wherein said latch (10, 110, 210, 310) gives free the cover lid (2, 102, 202, 302) to move into the open position, whereby said latch mechanism comprises a permanent magnet (40, 140, 240, 340) interacting with a magnetisable element (16, 116, 216) and exerting a magnetic holding force onto said magnetisable element (16, 116, 216) to hold said latch (10, 110, 210, 310) in the first position, wherein a solenoid (41, 141, 241, 341) is positioned adjacent to the permanent magnet (40, 140, 240, 340), said solenoid (41, 141, 241, 341) being connected to a control unit, said control unit being adapted to receive an opening signal and to provide a current flowing through said solenoid (41, 141, 241, 341) in response to such opening signal, wherein said solenoid (41, 141, 241, 341) is arranged and dimensioned such that the current flowing through said solenoid (41, 141, 241, 341) reduces said magnetic holding force to such a level that the latch (10, 110, 210, 310) is released in the second position, wherein the latch (10, 110, 210, 310) comprises a locking element with two legs (11, 12, 111, 112, 211, 212) which delimit a recess (13, 113, 213), the lower leg (11, 111, 211) having a bottom face (211a, 311a) which is oriented oblique to the direction of movement of the cover lid for providing a wedge-like effect onto a locking lever, the locking lever being pivotally mounted to a projection which is integral with the cover lid, a spiral spring is arranged around said pivotal coupling to force said locking lever in a clockwise direction, characterized by a reset pin which is connected to the cover lid, the reset pin extending from the cover lid in a direction towards the latch, an upper end of the reset pin being arranged opposite to a reset face of the latch for coming into contact with said reset face of the latch if the latch is in the second unlocking position and the cover lid is pushed into the closed position for thereby moving the latch from the second unlocking position into the first locking position if the cover lid is moved from the open position into a closed position. - an oxygen source, - an oxygen mask connected via an oxygen line to said oxygen source, - a container, wherein said oxygen mask is positioned inside said container, - a releasable cover lid (2, 102, 202, 302) mounted to the container to close an opening of said container in a first position of said cover lid (2, 102, 202, 302) and to open said opening in a second position, - a latch mechanism mounted to said container, said latch mechanism comprising a latch (10, 110, 210, 310) which is switchable from a first position wherein said latch (10, 110, 210, 310) holds said cover lid (2, 102, 202, 302) in the closed position to a second position wherein said latch (10, 110, 210, 310) gives free the cover lid (2, 102, 202, 302) to move into the open position,