An automotive air distribution system is shown including at least one floor mat (21) for an automobile, having one or more air distribution channels (24) provided therein, which are connected by way of connecting hoses (17) and an adaptor (11), to an outlet of conditioned air in an automobile, such as a heater outlet (10). The air channels in the hollow floor mat may heat or cool the upper surface (26) of the floor mat simply by convection or by enclosable valve means (35) communicating with the top surface of the floor mat to let air escape from the air distribution channels through the top surface of the floor mat. Such air distribution means may also be provided in the rear seat of an automotive type vehicle by having one or more rear floor mats (34) with similar air distribution channels (24) and air outlets (22) connected to the rear of the front floor mat by an additional air distribution hose (33).