What it is: A sustainably sourced, premium essential-oil blend designed for use with the Aera Smart Diffuser. What it does: Offers consistent, long-lasting fragrance to any room in your home. Citrus: A blissful day at the spa. Sparkling lemon and orange with cooling clary sage and mellow cedarwood. Bright and uplifting. Rose: The queen of the florals, voluptuous yet delicate. Rose, peony and linden blossoms. Fresh and sensuous. Lavender: Summertime