Pura Deodorizing Fragrance Diffuser Refill, Juicy Acai; The Pura Malodor Fragrance Refill is designed to help reduce stinky pet odors. It’s formulated with cats and dogs in mind and replaces pet odors with its clean and safe fragrance. Crisp apple and fruits are combined with floral and orchard woods notes for a cheerful, mouthwatering scent. This refill pairs with the Pura Smart Fragrance Diffuser (sold separately).