NDD 3-Liter Calibration Syringe with Calibration Adapter
Part Number: 2030-2
While the EasyOne does not require calibration, it is important to note that the American Thoracic Society, NIOSH/OSHA, and others recommend that the accuracy of the spirometer be verified on a regular basis. This verification is easily done using the ndd 3-liter syringe.
