Patent ID: 6899322

Claim:
A method for formation of a mist consisting of ultra-fine droplets, said method comprising the steps of: a) providing a partition, made of a rigid material, at least a region thereof being gas permeable, said region is defined by a first and by a second surface and by a bulk portion confined therebetween, b) moistening the first surface of the region by a liquid to form a film of the liquid, said film coating the first surface of the region, while leaving dry the second surface of the region and the bulk portion thereof, c) establishing a stream of gas directed from the second surface to the first surface of the region, wherein said gas stream is capable to pass the bulk portion of the gas-permeable region and to convert the film covering the first surface into a mist consisting of plurality of discrete droplets, said droplets emerging from the first surface of the gas permeable region.