Micronized spray device

Micronized spray device for washing nasal and neighboring cavities, comprising a bell-shaped body having a bottom and an inner outlet, said bell-shaped body forming an atomization chamber on the bottom thereof for containing a washing liquid, a compressed-air injector having a spray nozzle, said spray nozzle being axially aligned with said inner outlet, an outer skirt surrounding said bell-shaped body and having an outer outlet aligned with said inner outlet, a chamber for collecting catarrhal material detached from the nasal cavities disposed between the outer skirt and said bell-shaped body, said collecting chamber having ports on the outer skirt to vent pressure generated during use to the outside of the micronized spray device, said outer skirt being movable between a first position, in which said outer outlet is spaced from said inner outlet thereby forming an interspace leading to said collecting chamber, and a second position, in which said outer outlet overlaps said inner outlet and thus closes said interspace.