Device for generating droplets (I; II; III; IV; V; VI; VII; VIII) comprising: - a hollow body (1; 101; 201; 301; 401; 501; 601) delimiting a nebulization chamber, - means for generating droplets comprising a nebulization nozzle (20; 120; 220; 320; 420; 520; 620; 720), forming a liquid inlet member, said nebulization nozzle being provided with at least one liquid inlet orifice (23 623) and at least one liquid outlet orifice (21; 621), said nebulization nozzle being capable of generating a jet of liquid (J) inside said nebulization chamber along a generation path, the means for generating droplets further comprising a piezoelectric element , provided opposite said outlet orifice of said nozzle, capable of emitting acoustic waves into said liquid to generate droplets from said jet of liquid (J), - ventilation means (3; 103; 203; 303; 403; 503; 603; 703) capable of generating a gas flow intended to drive at least part of said liquid into the nebulization chamber, these ventilation means comprising a ventilation member and a ventilation channel (4; 104; 204; 304; 404; 504; 604; 704), extending from said ventilation member and opening into the nebulisation chamber, said device being a nebulization device (I; II; III; IV; V; VI; VII; VIII) and further comprising - an intermediate passage (44; 144; 244; 344; 444; 544; 644; 744), the gas flow generated by the ventilation member being able to flow in the intermediate passage, along a first path of flow different from the generation path, - return means capable of returning the gas flow coming from the intermediate passage radially towards the center of the nebulization chamber, along a second flow path substantially identical to the generation path, the intermediate passage being delimited by facing walls belonging respectively to an upstream neck , provided in the vicinity of the nebulization nozzle , and to a downstream barrel of cross section less than that of the collar. - a hollow body (1; 101; 201; 301; 401; 501; 601) delimiting a nebulization chamber, - means for generating droplets comprising a nebulization nozzle (20; 120; 220; 320; 420; 520; 620; 720), forming a liquid inlet member, said nebulization nozzle being provided with at least one liquid inlet orifice (23 623) and at least one liquid outlet orifice (21; 621), said nebulization nozzle being capable of generating a jet of liquid (J) inside said nebulization chamber along a generation path, the means for generating droplets further comprising a piezoelectric element , provided opposite said outlet orifice of said nozzle, capable of emitting acoustic waves into said liquid to generate droplets from said jet of liquid (J), - ventilation means (3; 103; 203; 303; 403; 503; 603; 703) capable of generating a gas flow intended to drive at least part of said liquid into the nebulization chamber, these ventilation means comprising a ventilation member and a ventilation channel (4; 104; 204; 304; 404; 504; 604; 704), extending from said ventilation member and opening into the nebulisation chamber, said device being a nebulization device (I; II; III; IV; V; VI; VII; VIII) and further comprising - an intermediate passage (44; 144; 244; 344; 444; 544; 644; 744), the gas flow generated by the ventilation member being able to flow in the intermediate passage, along a first path of flow different from the generation path, - return means capable of returning the gas flow coming from the intermediate passage radially towards the center of the nebulization chamber, along a second flow path substantially identical to the generation path, <EOS>