A device for precluding induction of impurities with raw air inducted into an internal combustion engine, wherein at least one air intake stub of an air filter container draws air from an air accumulation chamber which is sealed off on the front side by a front end covering and on the back side by a convex separating partition adjacent to the engine chamber, and which contains at least one air intake opening located in the floor area of the partition which communicates with air intake openings in the front end of the motor vehicle.