Fresh sheets beckon. On the nightstand a sprig of lavender melds beautifully with warm and enveloping bergamot. Calming chamomile melts into a heart of eucalyptus to create a feeling of well-being. Smoky patchouli is enhanced by hints of sage and rosemary for a quiet, relaxing finish. This is the refill vial for the Smart Diffuser powered by Pura.