US Patent 10350321 Device for evaporating a volatile fluid

An assembly for evaporating a volatile fluid is described, the assembly comprising a device and a refill which are detachable from one another: wherein the device comprises a magnetic induction coil configured to operate with an alternating current passed therethrough; and wherein the refill comprises a reservoir for the volatile fluid, a volatile fluid transport means to draw the fluid from the reservoir, and at least one susceptor arranged to heat the volatile fluid transport means when said alternating current is passed through the induction coil. Refills, devices and methods of operation are also described.