ONA Mist PRO, when used in the ONA Mist Dispenser, controls difficult, repetitive household, environmental and garden odors in small areas. Not a cover-up or perfume, this standalone smell stopper has almost no scent of its own - all it leaves behind is fresh air. Even when used in extremely odorous conditions, ONA Mist PRO removes almost all traces of unpleasant smells. Six-ounce cans of ONA Mist PRO treat areas up to 6,000 square feet.