The invention relates to an ultrasound liquid atomizer comprising: a rigid piezoelectric transducer body (1) having a first end defining an opening and a second end, the inside of the piezoelectric transducer body (1) comprising a cavity for containing a liquid to be atomized and said body (1) further comprising a symmetry axis； a micro-perforated membrane (3) attached on said first end and covering said opening； a piezoelectric member (2, 9) adapted and provided so as to vibrate the piezoelectric transducer body (1)； characterized in that the piezoelectric member (2, 9) is located towards said second end in order to vibrate the piezoelectric transducer body (1) in a direction parallel to its symmetry axis.
