Set a festive, smart-home ambiance with NEST New York Holiday Refill Duo for Pura Smart Home Fragrance Diffuser. Bring the spirit of the season to your space with this refill duo made for the Pura smart home diffuser. A blend of pomegranate, mandarin, pine, clove, cinnamon, vanilla and amber is diffused with adjustable intensity and scheduling, so you can tailor fragrance to your routine. Each vial offers long-lasting, flame-free scent that keeps hallways, living rooms and gathering areas feeling warm, polished and holiday-ready.