The above setup is designed to calibrate 3D printed small venturimeter of different dimensions and beta ratio. It mainly includes a centrifugal blower, a peak flow rate meter which is similar to mechanical rotameter, a differential pressure sensor and an oscilloscope to record the sensor data. In order to generate variable flow from the blower a variac (AC voltage regulator) is attached with it. The standard readings are obtained from a commercial medical grade Peak Flow Rate meter. Basically this experiment is conducted to check the feasibility of 3D printed micro venturimeter as a potential spirometer in telemedicine.