The 5 Air Wick Essential Oil for Diffuser Lavender & Almond Blossom Refills are organic, odorous essential oils designed for aromatherapy in any room. It is suitable for all occasions and can be used with a diffuser to create a calming and relaxing atmosphere in your home. The black plastic bottles are labeled with the Air Wick brand and are intended for use with a diffuser, making them a convenient and stylish addition to any space.