An air flow deflector for use with a hood-type hair dryer is a thick, resiliently compressible, unitary halo with an inner perimeter of length suited to surround and abut, preferably with tension, against the subject's head when the halo's inner perimeter is contoured approximately immediately below the subject's hair line. The halo deflects the flow of warm air away from exposed skin portions of the head, neck and shoulders. An arcuate upturned extension on its front portion deflects air flow back to the interior of the hood of the dryer. The unitary halo may be continuous or split for adjustability and hinged for increased manipulability.