Abstract: A train station has at least one transportation route for traffic of vehicles, wherein the at least one transportation route is provided with a vehicle tunnel. At least one public waiting area is arranged adjacent to the at least one transportation route. An enclosure is provided in which the at least one public waiting area is arranged, wherein the enclosure has at least one side wall. At least one ambient air purification arrangement for purifying ambient air is provided that has one or more filter units for separating solid, liquid or gaseous ambient air pollutants from the ambient air. The one or more filter units are arranged at and/or in the at least one side wall of the enclosure.

Abstract: A brake dust particle filter for a brake caliper of a disc brake assembly, wherein the brake caliper comprises a lining inspection opening, closes in a mounted state thereof the lining inspection opening at least partially with precise fit. The brake dust particle filter is provided with a filter medium support that supports a filter medium. A brake caliper provided with the brake dust particle filter in the lining inspection opening is arranged across the brake disc of the disc brake assembly.

Abstract: A brake dust particle filter for a disc brake assembly is provided to catch particles generated during braking. The brake dust particle filter has a ring segment-shaped housing with two axially spaced apart housing side walls and a radially outwardly positioned housing peripheral wall. The housing peripheral wall is arranged between the housing side walls. The housing accommodates the brake disc in the housing interior. A tongue projects inwardly away from the housing peripheral wall in the housing interior. The tongue projects at least in sections with a radial component and has a flat cross section with a base surface facing the housing peripheral wall, an end face projecting into the housing interior, and a side face. The tongue is formed by a filter medium and has no supporting device components separate from the filter medium. The filter medium provides a satisfactory stiffness keeping the tongue structurally stiff.

Abstract: A brake dust particle filter for a brake caliper of a disc brake assembly, wherein the brake caliper comprises a lining inspection opening, closes in a mounted state thereof the lining inspection opening at least partially with precise fit. The brake dust particle filter is provided with a filter medium support that supports a filter medium. A brake caliper provided with the brake dust particle filter in the lining inspection opening is arranged across the brake disc of the disc brake assembly.

Abstract: A brake dust particle filter for a disc brake assembly is provided to catch particles generated during braking. The brake dust particle filter has a ring segment-shaped housing with two axially spaced apart housing side walls and a radially outwardly positioned housing peripheral wall. The housing peripheral wall is arranged between the housing side walls. The housing accommodates the brake disc in the housing interior. A tongue projects inwardly away from the housing peripheral wall in the housing interior. The tongue projects at least in sections with a radial component and has a flat cross section with a base surface facing the housing peripheral wall, an end face projecting into the housing interior, and a side face. The tongue is formed by a filter medium and has no supporting device components separate from the filter medium. The filter medium provides a satisfactory stiffness keeping the tongue structurally stiff.

Abstract: A train station has at least one transportation route for traffic of vehicles, wherein the at least one transportation route is provided with a vehicle tunnel. At least one public waiting area is arranged adjacent to the at least one transportation route. An enclosure is provided in which the at least one public waiting area is arranged, wherein the enclosure has at least one side wall. At least one ambient air purification arrangement for purifying ambient air is provided that has one or more filter units for separating solid, liquid or gaseous ambient air pollutants from the ambient air. The one or more filter units are arranged at and/or in the at least one side wall of the enclosure.