This compact compressed air nebuliser was developed for inhalation challenge testing (for volume measurement e.g. where there is an obstruction). Thanks to its fully automatic and low-noise compressor, the device has no need of external compressed air supply or expensive compressed air canisters. An inbuilt panel computer with LCD display makes operation easy for your medical personnel. The method used by the smart pft nebuliser is standardised and thus allows international comparison of the measurement results.