Abstract: An air deflector for delecting air exiting from a residential floor vent to a location remote therefrom, comprising a first element having an inverted u-shaped cross section formed by a central wall panel and a pair of side walls depending from opposite longitudinal edges thereof, an end wall panel depending from the central wall panel and joining the side walls to form an inlet end, a second element having an inverted u-shaped cross section formed from a central wall and a pair of side walls depending from opposite longitudinal edges thereof, the second element being dimensioned telescopingly to engage with the first element with the central wall panels in abutment so that one end of second element extends beyond the first element to form an outlet end, the first and second elements being dimensioned so that when telescopingly engaged, the side and end walls of the first element and the side walls of the second element have substantially coplanar distal edges extending along the length thereof to lie against