METHOD OF EMITTING A VOLATILE MATERIAL

A refill (69) is disclosed which has a volatile material contained therein. The refill comprises a container (250) having a body (252) and a cylindrical neck (272) forming an opening (278); a volatile material disposed within the body (252) of the container (250); a wick (282) in contact with the volatile material and extending out of the container through the opening (278); and a wick holder (280) for retaining the wick (282) within the cylindrical neck (272) of the container (250), the wick holder (280) comprises an outer surface (302) in contact with the cylindrical neck (272); and an inner surface (298) have a first plurality of fins (296) extending outwardly from the inner surface (298) for centering and retaining the wick (282) within the wick holder (280). Alternatively the material dispenser may comprise a housing having a channel adapted for insertion of a wick extending from a refill having a volatile material; a heater disposed within the housing, the heater including a positive temperature coefficient element; and a metallic ring in conductive contact with the positive temperature coefficient element, wherein the metallic ring surrounds the channel and the wick when a refill is disposed within the dispenser; wherein heat from the positive temperature coefficient element travels through the aluminum ring to form a ring of heat that evenly heats a circumference of the wick.