Clear with Aura Cacia Breathe Essential Oil Blend. The essential oils of peppermint, tea tree and rosemary will encourage a clearing atmosphere with a fresh, herbal and minty aroma. Add 18 drops to a diffuser to clear. Aura Cacia is part of a member owned co-op that has been producing 100% pure essential oils since 1993. Aura Cacia Essential Oils are ethically sourced, GC/MS tested, and never tested on animals.