Aerosol insertion device for introducing an aerosolised wetting agent and / or of a medicament in a breathing circuit comprising an endotracheal tube (106), a is derived from a breathing apparatus (100) extending in the inspiration line (101) and a of the respiration apparatus (100) extending in the exhalation line (102),the aerosol insertion apparatus an aerosol generator (2) and control means (3) for controlling the operation of the aerosol generator (2), wherein the aerosol generator (2) a domed oscillation element (40) with a plurality of tapered openings located between a first surface for receiving of the aerosol which olie wetting agent and / or medicament is suitable, and a second surface, to which an aerosol is produced, thereof,the openings in the oscillation element (40) are dimensioned so that they the moistening agent and / or the medicament by the ejection of droplets thereof base in the form of an aerosol in such a way that the plurality of the droplets with a size of less than 5 microns,the aerosol generator (2) a container (1) for the aerosol, special olie wetting agent and / or medicament, and wherein the container an upper opening (400) for the introduction of the aerosol which olie wetting agent and / or medicament by means of a removable stopper, or of the cover (401) is closed, andthe aerosol insertion apparatus further comprising a t - piece connection (30) with a ventilation line a gas outlet (31) and an outlet (32) comprises.
