Radiator Vaporisers & Light Bulb Rings
Lamp & Radiator Vaporisers (Fragrancers)
LIGHT-BULB RINGS These are made of ceramic or metal. A few drops of essential oil are put into a grove in the ring, which is then placed on top of a cold light bulb (a table lamp or central celing light). When the light is switched on, the heat from the bulb causes the oils to vaporize. Lightbulb rings are avaliable from Powells Aromatherapy in both metal and ceramic. RADIATOR DIFFUSERS These are designed to fit onto radiators. A few drops of essential oil are put into the water-filled bowl of the diffuser and the heat of the radiator causes the oil to vaporize. 
