HARMONY Natural Car Air Freshener - 8 Aromatherapy Blends from 100% Pure Vanilla, Cinnamon & Cassia Essential Oils - Includes Diffuser 8 HARMONY Aromatherapy blends of 100% pure Vanilla, Cinnamon, Tonka Bean & Cassia essential oils. 1 car scent electric diffuser. Plus 1 Free Sample Bonus! No chemicals, toxins, additives or synthetic fragrances. Blended for a balanced air freshener experience. Naturally eliminates and neutralizes all types of odors including pet, food, smoke & mildew.