A sprayer comprising: an air supply unit comprising a motor, the air supply unit configured to output a high volume flow of pressurized air by operation of the motor; a hose having a first end and a second end, the first end receiving the pressurized air output by the air supply unit; a spray gun having a trigger and a first valve, the second end of the hose connected to the spray gun, wherein actuation of the trigger causes the first valve to open and the spray gun to spray fluid using the pressurized air from the hose; a second valve located upstream of the hose and through which at least some of the pressurized air output by the air supply unit flows; a sensor that outputs a signal indicative of a parameter of the pressurized air that is downstream of the second valve and upstream of the first valve; and control circuitry that receives the signal and regulates power output to the motor, wherein a volume of the pressurized air is trapped within the hose by the first and second valves (30, 68) when the first and second valves are closed, and the volume of the pressurized air is used by the spray gun for spraying by the trigger being actuated, characterized in that the control circuitry is configured to reduce electrical power output to the motor based on the signal indicating that the parameter of the pressurized air has increased, and increase electrical power output to the motor based on the signal indicating that the parameter of the pressurized air has decreased; the volume of the pressurized air that is trapped within the hose is enough to immediately resume spraying while the first valve is open and the second valve is closed. an air supply unit comprising a motor, the air supply unit configured to output a high volume flow of pressurized air by operation of the motor; a hose having a first end and a second end, the first end receiving the pressurized air output by the air supply unit; a spray gun having a trigger and a first valve, the second end of the hose connected to the spray gun, wherein actuation of the trigger causes the first valve to open and the spray gun to spray fluid using the pressurized air from the hose; a second valve located upstream of the hose and through which at least some of the pressurized air output by the air supply unit flows; a sensor that outputs a signal indicative of a parameter of the pressurized air that is downstream of the second valve and upstream of the first valve; and control circuitry that receives the signal and regulates power output to the motor, wherein a volume of the pressurized air is trapped within the hose by the first and second valves (30, 68) when the first and second valves are closed, and the volume of the pressurized air is used by the spray gun for spraying by the trigger being actuated, characterized in that the control circuitry is configured to reduce electrical power output to the motor based on the signal indicating that the parameter of the pressurized air has increased, and increase electrical power output to the motor based on the signal indicating that the parameter of the pressurized air has decreased; the volume of the pressurized air that is trapped within the hose is enough to immediately resume spraying while the first valve is open and the second valve is closed.