The present invention describes a universal refill containing a volatile liquid adapted for use with at least two different types of emanation device wherein the universal refill comprises a housingat least one reservoir in the housing for holding the volatile liquid at least two valves in the housing in communication with the reservoir, wherein each of said valves is configured to be automatically resealable when not being held open and wherein each type of device emanates the volatile liquid from the universal refill via a different mechanism to each other type of emanation device and wherein said at least two different types of emanation device each comprise a chassis configured to receive and releasably retain the universal refill.
