From APOTHEKE, the Charcoal Pura Smart Scent Fragrance Refill, Set of 2 features:   Experience the rich and addictive aroma of the iconic bestselling fragrance, Charcoal, with this pair of APOTHEKE x Pura Smart Fragrance Diffuser refills. Includes 2 individually packaged Charcoal Pura Smart Scent Fragrance Refill vials. Charcoal combines cedarwood and sandalwood with smoky embers, burnt maple, and a hint of raspberry for a broody and full-bodied fragrance. When used with a Pura 4 Smart Fragrance Diffuser, one Fragrance Refill lasts about 3 weeks in a medium-sized room, diffusing 6–8 hours per day at medium intensity. APOTHEKE x Pura scents are created with clean ingredients and are safe for use around children and pets. Brooklyn-born-and-based, woman-founded-and-owned business. Inspired by life's simple moments Made of natural and synthetic fragrance oils. Fragrance Family : Woody  Top Notes: Burnt Maple, Raspberry, Unripened Tomato Skin Middle Notes:  Green Clove Leaf, Faint Cinnamon Bottom Notes: Smoky Embers, Cedarwood, Guaiac Wood   How to Use: Simply insert an APOTHEKE x Pura Smart Scent Fragrance Refill vial into the Pura 4 Smart Fragrance Diffuser and the device automatically detects the fragrance, creating a seamless scent swapping experience. Pura 4's adaptive diffusion technology reads the room's temperature and adjusts according to your preferences for a consistent, reliable scenting experience. Refills are also compatible with the Pura 3, but they will not be automatically detected.   Made in the USA.