Vernebler

摘要

A nebuliser comprises a gas exit (7), at least one outlet (10) adjacent to the gas exit, and a deflector (15) for deflecting a stream of gas issuing from the gas exit over the at least one outlet for drawing a substance to be atomised from it, and for atomising the substance in the gas. The deflector defines first and second profiles, and the atomiser has an atomising configuration in which the first profile of the deflector lies in the stream of gas for atomisation, and non-atomising configuration in which the second profile of the deflector lies in the stream of gas without atomisation of the substance.