What it is: This refill pack for your Pura Smart Diffuser fills your home with a beautiful and refreshing scent.Volcano: Volcano is the perfect blend of citrus and sugar notes. Like the excitement and energy of a summer-night rendezvous, this fragrance is simply unforgettable.Aloha Orchid:This unmistakably floral fragrance greets you with a smile, fills your home and lifts your spirit. This bouquet of flowers brings orchid, gardenia and jasmine to your home.Blue Jean: Like your favorite pair of jeans, this fragrance screams comfort. Warm and clean with a hint of linen, this fragrance feels great if you're entertaining or unwinding. Pack of two refills One refill will last up to 120 hours depending on the scent intensity in the app Paraben-free; phthalate-free Made in the USA