Air freshener fragrances are consumer products that typically emit fragrance and are used in homes or commercial interiors such as restrooms, foyers, hallways, vestibules, and other smaller indoor areas, as well as larger areas such as hotel lobbies, auto dealerships, medical facilities, public areas, and other large interior spaces. Car fresheners are used in automobiles. As a source of odors, specific deodorizing blocks are made for toilets and urinals. http://www.fuxiongflavor.com/chemical-fragrance/air-freshener-fragrance/