PRESSURE RELIEF DEVICE

A pressure relief device for an explosion-proof housing. The pressure relief device has a lamellae arrangement having a plurality of lamellae. The lamellae are arranged in a transverse direction with distance to one another and thereby limit flow channel between two lamellae respectively. Each flow channel establishes a flow connection between a first opening and a second opening of the lamellae arrangement that are arranged with distance to one another in flow direction. Each flow channel has a non-straight preferably meandering or wave-shaped extension between the first opening and the second opening and can be flameproof as an option. Water drops that accumulate inside the flow channel are retained due to the contact with the two adjacent lamellae due to adhesion forces. In doing so, the pressure relief device is configured as protection against throughflow of water without additional measures.