The invention relates to a flap module (1) of a motor vehicle (10), in particular of a wheel house flap module, an underbody flap module or a side sill flap module, comprising at least one flap part (2) having an inner side and an outer side, the inner side being designed to point towards the motor vehicle body in the assembled state, and the outer side being designed to point towards the motor vehicle body in the assembled state. And the outer side surface is designed to point to the surroundings in the assembled state. The baffle piece can be connected with a motor vehicle body. The invention relates to a baffle plate element for a motor vehicle, which is produced as an at least double-walled structure and has an inner wall, which faces the body of the motor vehicle in the assembled state, and an outer wall, which faces the surroundings in the assembled state, which at least together delimit at least one flow channel (23), through which ambient air can flow from an inflow opening to an outflow opening. At least one filter element (3) is arranged in the flow channel in such a way that air flowing from the inlet to the outlet flows alongside or through the filter element. The filter element has at least one filter medium (31) which lies in the region of the inner wall and/or the outer wall along a longitudinal extension having at least 25% of the total length of the flow channel, preferably at least 50% of the total length of the flow channel.

本发明涉及机动车（10）的一种挡板模块（1）、尤其是车轮罩挡板模块、车底挡板模块或侧门槛挡板模块的挡板模块，所述挡板模块（1）具有至少一个挡板件（2），所述挡板件具有内侧面和外侧面，其中所述内侧面被构造用于在装配状态中指向机动车车身，并且所述外侧面被构造用于在装配状态中指向周围环境。所述挡板件能够与机动车车身连接。所述挡板件被制作为至少双壁的结构并且具有在装配状态中指向机动车车身的内壁以及在装配状态中指向周围环境的外壁，所述内壁和外壁至少一同限定至少一条流动通道（23），所述流动通道能够由环境空气从流入口到流出口贯穿流过。在所述流动通道中如此布置了至少一个过滤元件（3），使得从流入口朝流出口流动的空气在所述过滤元件的旁边流过或者贯穿流过所述过滤元件。所述过滤元件具有至少一个过滤介质（31），所述过滤介质沿着具有流动通道的总长的至少25%、优选流动通道的总长的至少50%的纵向延伸度处于所述内壁和/或外壁的区域中。