This drug nebuliser is dose and breath phase controlled. It can be in easily integrated into any systems using Piston-made lung diagnostic devices. Having a mechanical nebulizer with narrow range of particle sizes (1.2 ? or 3.5 ?) this device contributes to exact deposition the medicines administered. Provocation test and broncholysis receive the full support of this machine. Multi-step protocols in the device both increase and provide constant concentration. Operational only during inspiration, this helps supervise the dosage inhaled and provides limits automatically. The viral and bacterial filter is collected in a sack after being exhaled in order to prevent environmental contamination.