rotating drum 14 as illustrated the cabinet body includes a door opening 16 for loading clothing articles into the mouth of the drum 14 the door opening 16 may be closed by means of a door 18 as will be well known to those of skill in the art the cabinet body 12 typically includes a bulkhead flange 20 fig2 surrounding the door opening and projecting into the interior of the cabinet body the bulkhead flange 20 is disposed generally around a reduced diameter drum opening 22 an outer wall portion of the drum is disposed in surrounding relation to the flange 20 as shown a seal 30 in the form of a ring is held between a portion of the drum 14 and the bulkhead flange 20 to block air flow as will be appreciated by those of skill in the art dryers are typically vacuum systems in operation the seal 30 prevents the draw of cool non heated air from around the drum with this flow path blocked air is drawn more efficiently into the drum from a heated element area for use and eventual vent discharge while the actual cross sectional folded geometry of the seal 30 may vary the layered construction preferably utilizes a fibrous layer 40 such as needle punched wool blend felt as will be well known to those of skill in the art in overlying juxtaposed relation to a.