Nebulization device has fixed sieve

The present invention relates to a spray device comprising at least one reservoir (6) suitable for containing a liquid, said reservoir (6) having an upper opening (O) for the payment of said liquid in the reservoir (6), a fixed screen ( 2) including a plurality of pinholes and having a face (2a) is arranged opposite a piezoelectric device (1) in contact with the liquid contained in the reservoir (6) so that the vibrations of the piezoelectric device -electric (1) are transmitted to the fluid forcing its way through the holes of the screen (2) for generating an aerosol from an emission face (2b) of the sieve. The opening (O) of the reservoir (6) for filling in an operating position of said device is located above the face (2a) of the screen arranged opposite the piezo-electric device to produce in said position operating an aerosol along a substantially vertical axis, up and down.