Described is a Bulgarian aerosol apparatus of pneumatic type with an original nozzle and way to maintain permanent pressure. The apparatus is supplied with a set of 7 nozzles of a varying dia and is intended for universal dispersion of veterinary preparations and vaccines in aerosol form in view of their dosing. It makes it possible to maintain the desired concentration of the preparation sprayed for several minutes. The pneumatic type is advantageous for a number of reasons over other other apparatuses of similar design. It is simply constructed, easily put to action, is stable and cheap, and can be sterilized.
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