Abstract: The invention relates to a floor, wall or ceiling panel (2) or strip, which is designed for placing on and/or fastening to a floor, a wall or a ceiling of a room. According to the invention, the panel or the strip has at least one active component with an air pollutant- and/or odorous substance-reducing action.

Abstract: The invention relates to a board for use in interior construction, especially for producing new walls in a room or for paneling wall, ceiling or roof surfaces of a room. Said board is provided on at least two opposite ends, a first and a second end, with connecting means, especially having a groove-and-tongue design, for linking the board with other boards of the same kind. The connecting means facilitate a catch, snap-in or click-in connection with an adjoining board of the same kind. Additional fastening means are provided on the board itself or on two boards linked with each other for fastening the board on a support construction. The invention also relates to a method for producing new walls of a room or for paneling already existing wall, ceiling or roof surfaces of a room.