Device for evaporating a volatile fluid

摘要

An assembly for evaporating a volatile fluid is described, the assembly comprising a device (1) and a refill (2) which are detachable from one another: wherein the device comprises a magnetic induction coil (103) configured to operate with an alternating current passed therethrough at a frequency of between substantially 20KHz to substantially 500KHz; and wherein the refill comprises a reservoir (201) for the volatile fluid, a volatile fluid transport means (203) to draw the fluid from the reservoir, and at least one magnetic susceptor (204) arranged to heat the wick predominately by magnetic hysteresis when said alternating current is passed through the induction coil, wherein the magnetic susceptor has a coercivity of substantially 50 ampere/metre (He) to substantially 1500 ampere/metre (H