Our Pure Essential Oil Reed Diffusers contain no alcohol, water, petrochemicals, or preservatives – only 100% pure essential oils – a SunLeaf exclusive! Available in ten signature scents, when assembled, the essential oils in each bottle absorb into the natural reeds to gently fill the room with fresh, clean aroma. Each beautiful signature scent is composed of balanced blend of essential oils. Zero alcohol makes for an exceptionally long-lasting aroma: 1 oz Reed Diffuser: 2-3 Months