Device for evaporating a volatile fluid

A method for evaporating a volatile fluid, comprising the steps of:

• locating a refill comprising a reservoir containing the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir toward at least one magnetic susceptor having a coercivity of between about 50 ampere/meter (Hc) and about-1500 ampere/meter (Hc) in a device comprising a magnetic induction coil operable with an alternating current passed therethrough at a frequency of between about 20 KHz to about 500 KHz which induces a magnetic field and a volatile fluid transport means receiving area containing at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, non-magnetic metal;
• generating a magnetic field through said induction coil by passing an AC current at a frequency of between about 20 KHz to and about 500 KHz therethrough;
• the location of the refill in the device being such that the at least one magnetic susceptor is at least partially within the generated magnetic field and at least partially within the volatile fluid transport means receiving area;
• and evaporating the volatile fluid by said at least one magnetic susceptor being heated predominately by magnetic hysteresis induced by the changing magnetic field from the induction coil which evaporates the volatile fluid from the volatile fluid transport means and by said at least one piece of heat-conducting, non-magnetic metal foil and/or deposited heat-conducting, nonmagnetic metal heating to resist condensation of the evaporated fluid within the device.