Simply place a few drops of your favorite essential oil in this Fan Fuser and enjoy! This aromatherapy diffuser is powerful enough to scent a large room (up to 800 sq ft) on high speed and a small room (up to 600 sq ft) on low speed. This is a clean, safe, effective way of diffusing pure essential oils. The Fan Fuser can be left unattended while you sleep and is ideal for use in a bedroom or office, or for use in hospice and nursing homes. Contact us for information about purchasing this Fan Fuser.