Abstract: A toilet seat assembly for drawing in noxious toilet air, filtering and freshening the air, and returning the treated air to the toilet area. The toilet seat includes internally formed intake and exhaust ports which are each provided with respective intake and exhaust apertures. The intake apertures are arranged around the inner periphery of the seat to point towards the center of the toilet and the exhaust apertures are arranged around the outer periphery of the seat. An air treatment assembly is connected to the ports and is operable to draw air in through the intake apertures, pass the air through both a charcoal filter and a deodorant filter, and exhaust the air through the exhaust apertures in the toilet seat. An alternate embodiment of the present invention includes a heater assembly to warm the air prior to its exhaust.