A fan assembly includes a nozzle and a system for creating a primary air flow through the nozzle. The nozzle includes an outlet for emitting the primary air flow, and defines an opening through which a secondary air flow from outside the fan assembly is drawn by the primary air flow emitted from the outlet. To allow a parameter of an air flow, formed from the combination of the primary and secondary air flows, to be adjusted by a user, the nozzle has an adjustable configuration.