A vibrational fluid mover comprising: a housing defining a chamber, the housing having at least one orifice formed therein; at least one actuator element (34,36) positioned on the housing that moves in a time harmonic fashion responsive to a form of wave shape voltage applied thereto, such that a volume of the chamber increases and decreases to entrain fluid into the chamber and eject a jet of fluid out from the at least one orifice; and a control system operably connected to the at least one actuator element (34,36) to cause the form of wave shape voltage to be provided thereto so as to actively control the time harmonic movement of the at least one actuator element, characterised in that the control system is programmed to: set a baseline value for an operational parameter of the vibrational fluid mover generated responsive to a target voltage and frequency being provided to the at least one actuator element (34,36); monitor operation of the vibrational fluid mover during continued operation thereof at the target voltage and frequency; identify a deviation of the operational parameter from the baseline value during the continued operation thereof at the target voltage and frequency; and modify the voltage and frequency provided to the at least one actuator element (34,36) based on the identified deviation of the operational parameter from the baseline value. a housing defining a chamber, the housing having at least one orifice formed therein; at least one actuator element (34,36) positioned on the housing that moves in a time harmonic fashion responsive to a form of wave shape voltage applied thereto, such that a volume of the chamber increases and decreases to entrain fluid into the chamber and eject a jet of fluid out from the at least one orifice; and a control system operably connected to the at least one actuator element (34,36) to cause the form of wave shape voltage to be provided thereto so as to actively control the time harmonic movement of the at least one actuator element, characterised in that the control system is programmed to: set a baseline value for an operational parameter of the vibrational fluid mover generated responsive to a target voltage and frequency being provided to the at least one actuator element (34,36); monitor operation of the vibrational fluid mover during continued operation thereof at the target voltage and frequency; identify a deviation of the operational parameter from the baseline value during the continued operation thereof at the target voltage and frequency; and modify the voltage and frequency provided to the at least one actuator element (34,36) based on the identified deviation of the operational parameter from the baseline value. set a baseline value for an operational parameter of the vibrational fluid mover generated responsive to a target voltage and frequency being provided to the at least one actuator element (34,36); monitor operation of the vibrational fluid mover during continued operation thereof at the target voltage and frequency; identify a deviation of the operational parameter from the baseline value during the continued operation thereof at the target voltage and frequency; and modify the voltage and frequency provided to the at least one actuator element (34,36) based on the identified deviation of the operational parameter from the baseline value.