A nebulizer device for producing an aerosol spray via a flow of gas at varying oxygen concentrations is disclosed. The nebulizer device comprises a body defining an initial nebulization chamber, a subsequent baffling chamber and a venturi formed therebetween. Air intake ports are disposed on the body...http://www.google.es/patents/US4267974?utm_source=gb-gplus-sharePatente US4267974 - Nebulizer device