Bard Medi-Aire® Biological Odor Eliminator, Fresh Air Scent, 1 oz Spray Shelf Pack of 24 Bard Medi-Aire® Biological Odor Eliminator is a concentrated unique formula which chemically eliminates odors associated with urine, feces, emesis and necrotic tissue. It is available in three scents - Fresh Air, Lemon and Unscented.