The PDD-301/r Rhinomanometer and spirometer is a unique device the ensures the measurement of nasal resistance and basic pulmonary function testing. Its a helpful tool in the ENT practice that provides objective diagnosis for patients suffering from rhinitis. The PinkFlow* flow-meter and the rhinomanometer fully complies with the specifications and requirements of the Standardization of Lung Function Testing ATS/ERS Task force (European Respiratory Journal 2005). Its handy and simple to operate. Even in a non-hospital or clinic setting, just connecting it to a laptop PC, the PDD-301/r provides full portability in battery mode as well. A must-have for every hospital and ENT clinics.