The Fog Generator operates on the principle of the onesided open jet-tube (Schmidt-Argus-Tube) with a valve at the inlet side (carburettor) and an open outlet (fog outlet). This system – operating without any moving parts – with carburettor, mixer tube, combustion chamber and resonator constitutes an acoustical oscillation system at a certain frequency. This Fog Generator works at an operating frequency of abt. 100 cycles/second. Liquids (chemical formulations, oil, etc.) can be fed into the pulsating gas stream of the resonator at the outlet end. The high frequency of the gas allows the application and break up of solutions, otherwise susceptible to combustion or decomposition, due to the very short time they are exposed to the hot gas stream.