Kanberra® Marine Odor Eliminator 2 oz Spray. Kanberra Spray is an all-natural, proprietary blend of Pure Australian Tea Tree Oils. Allows the natural antiseptic properties of the oils to become airborne when the spray trigger is pumped. When Kanberra Spray is working all you should smell is clean air, the way nature intended. No fragrances, no masking and no perfumes, just true fresh air. Kanberra Spray is unlike any product on the market for attacking molds, mildew, fungi and their associated odors. Instead of masking the odors with a chemical fragrance, Kanberra Spray(R) actually neutralizes the cause of the odors.