This exquisitely scented NEST x Pura Smart Home Fragrance Diffuser Refill Duo lets you replenish your current fragrance or switch to a new one.Includes two vials to be used in the Pura Smart Home Fragrance Diffuser for up to 700 hours of scent.2 x 0.33 fl oz | 19.5 mL.Fragrance FamilyFreshScent TypeFresh CitrusKey NotesZesty lemon and orange bergamot blended with fresh mint and a hint of driftwoodMoodExhilarate