Bottom-raising and/or top-lowering sealing device (2, 20) for a sliding element, such as a sliding door, comprising: a lower frame element and/or an upper frame element, in which or in each of which a sealing strip is movably arranged respectively; leverage; and an operating element arranged next to the sliding element, wherein the bottom-raising and/or top-lowering sealing device (2, 20) is set up to extend the respective sealing strip upwards from the lower frame element and/or downwards from the upper frame element when the operating element is actuated, or to retract the sealing strip downwards into the lower frame element and/or upwards into the upper frame element when actuating the operating element, wherein the operating element is adapted to be arranged on a lateral frame element of the sliding element, a) wherein the operating element being mechanically coupled to the respective sealing strip via the linkage; or b)the operating element is pneumatically coupled to the sealing strip; or c) the operating element is hydraulically coupled to the sealing strip; or d) wherein the bottom-raising and/or top-lowering sealing device (2, 20) further comprises at least one electrically operated actuator, wherein the operating element is designed as an electric switch or electric control and is electrically coupled to the actuator, and wherein the bottom-raising and/or top-lowering sealing device (2, 20) is set up to supply the actuator with power when the operating element is actuated, and the actuator is set up to extend the respective sealing strip upwards of the lower frame element and/or downwards of the upper frame element when the operating element is actuated, or to retract the respective sealing strip downwards into the lower frame element and/or upwards into the upper frame element when actuating the operating element. a lower frame element and/or an upper frame element, in which or in each of which a sealing strip is movably arranged respectively; leverage; and an operating element arranged next to the sliding element, wherein the bottom-raising and/or top-lowering sealing device (2, 20) is set up to extend the respective sealing strip upwards from the lower frame element and/or downwards from the upper frame element when the operating element is actuated, or to retract the sealing strip downwards into the lower frame element and/or upwards into the upper frame element when actuating the operating element, wherein the operating element is adapted to be arranged on a lateral frame element of the sliding element, a) wherein the operating element being mechanically coupled to the respective sealing strip via the linkage; or b)the operating element is pneumatically coupled to the sealing strip; or c) the operating element is hydraulically coupled to the sealing strip; or d) wherein the bottom-raising and/or top-lowering sealing device (2, 20) further comprises at least one electrically operated actuator, wherein the operating element is designed as an electric switch or electric control and is electrically coupled to the actuator, and wherein the bottom-raising and/or top-lowering sealing device (2, 20) is set up to supply the actuator with power when the operating element is actuated, and the actuator is set up to extend the respective sealing strip upwards of the lower frame element and/or downwards of the upper frame element when the operating element is actuated, or to retract the respective sealing strip downwards into the lower frame element and/or upwards into the upper frame element when actuating the operating element. a) wherein the operating element being mechanically coupled to the respective sealing strip via the linkage; or b)the operating element is pneumatically coupled to the sealing strip; or c) the operating element is hydraulically coupled to the sealing strip; or d) wherein the bottom-raising and/or top-lowering sealing device (2, 20) further comprises at least one electrically operated actuator, wherein the operating element is designed as an electric switch or electric control and is electrically coupled to the actuator, and wherein the bottom-raising and/or top-lowering sealing device (2, 20) is set up to supply the actuator with power when the operating element is actuated, and the actuator is set up to extend the respective sealing strip upwards of the lower frame element and/or downwards of the upper frame element when the operating element is actuated, or to retract the respective sealing strip downwards into the lower frame element and/or upwards into the upper frame element when actuating the operating element.