Featuring fresh fragrances and aromatherapy scents, this product works by time release for consistent air freshening. Lasts 30 to 45 days depending on air flow. May be used alone anywhere odors are a problem or with a motorized deodorizer cabinet (A489, A061 or A069) for a complete odor-control program. Choose from the fresh Cucumber Melon or Sunshine fragrances; or the aromatherapy Eucalyptus, Lemon Coconut, Lively Lemon, Luxurious Lavender or Sun-kissed Orange.