Abstract: Device (10, 110, 210) including at least one flexible pouch (12, 21, 22) delimiting an interior volume, one air inlet opening (13) per flexible pouch to allow air to pass into an interior volume of the pouch, a closure for closing the air inlet in an airtight manner, the closure including two flexible strips (14, 16) located at the periphery of the air inlet opening, the strips being connected at their ends and adapted to be pressed against one another. A rigid movable part (24, 25, 26) is pivotally connected to one of the ends of the strips so that the movable part can be positioned around the strips in a closed position in which the two strips are kept clamped together so as to prevent air from escaping the device.

Abstract: Device (10, 110, 210) including at least one flexible pouch (12, 21, 22) delimiting an interior volume, one air inlet opening (13) per flexible pouch to allow air to pass into an interior volume of the pouch, a closure for closing the air inlet in an airtight manner, the closure including two flexible strips (14, 16) located at the periphery of the air inlet opening, the strips being connected at their ends and adapted to be pressed against one another. A rigid movable part (24, 25, 26) is pivotally connected to one of the ends of the strips so that the movable part can be positioned around the strips in a closed position in which the two strips are kept clamped together so as to prevent air from escaping the device.