This Hawaii Breeze scented air freshener is available in 16 ounce, 1 gallon, or 5 gallon containers. It infuses pleasant and fresh fragrances with odor busting neutralizers to completely refresh your vehicle's smell. Designed chemically to provide maximum odor busting properties, this air freshener lasts longer than the competition. To use, simply turn on your circulation and AC while turning on your air to high, then spray towards the passenger side floor to circulate throughout your vehicle. Suitable for most makes and models, this air freshener is practical and effective.