Piezo Air Pump is the use of piezoelectric ceramic inverse piezo electric effect made of miniature pumps, no motor, no rotating parts, piezoelectric ceramic sheet for its power drive source, in the alternating current drive, piezo electric ceramic radial shortening or elongation of the ceramic sheet, at the same time led to the elasticity of the substrate bending and deformation, so as to change the volume of the pump cavity. When the volume of the pump cavity increases, the pressure inside the cavity decreases and the gas flows into the pump cavity; when the volume of the pump cavity decreases, the pressure inside the cavity increases and the gas is squeezed out of the pump cavity.