A balloon inflator includes a tank containing a volume of pressurized gas and a regulator assembly removably secured to the tank for reducing the pressure of gas exiting the tank, the regulator assembly including a pressure regulator. A nozzle assembly is also provided and includes a valve for controlling dispensing of the pressurized gas. A flexible hose extends between the regulator assembly and the nozzle assembly, the hose being in fluid communication with the pressure regulator and the valve. The balloon inflator is small and lightweight, and therefore portable and concealable. The flexible nature of the hose allows for easy manipulation of the nozzle assembly, making use of the balloon inflator easier for performers.