The spirette breathing tube developed by ndd allows easy and hygienic lung function measurements. The EasyOne Spirometer (sold seperately) incorporates an ultrasonic flow sensor to measure the flow of air in and out of the patients lungs.
The Disposable Spirette acts only as a hygienic shield and is transparent to the ultrasonic pulses traveling between the measurement transducers. Since the disposable spirette has no sensor elements, it does not perform a measurement function and does not require calibration.
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