ADAPTIL Calm Diffusers are designed to get warm to the touch, there is a heating element inside the diffuser that releases the pheromones from the wick.
The diffusers have been on the market for over 20 years and there are no health or safety risks associated. The electric Diffuser plug complies with Australian and New Zealand electrical safety standards. The plastic materials used are self-extinguishing (V2 grade) and are designed to be left switched on all of the time.