The AE-500 Aroma Oil Diffuser is a powerful electric aroma oil scent diffuser covering up to 500 cubic meters. It has a built-in fan to spread fragrance quickly, so it works with all kinds of essential oils. Perfect for homes, washrooms, chain stores, gift shops, and restaurants. Desktop or wall mounted. The bottle capacity is 200ml. Available in two different dispensing styles. AE-500F Dispense from the front.AE-500T Dispense for the Top.