Ishubhu yokulinganisa yomsebenzi we-pulmonary ngumklamo omusha, ngobuchwepheshe obuhle kakhulu bokucubungula kanye nezinto zokwakha ezisezingeni eliphakeme, ukusebenza kweshubhu lokulinganisa lomsebenzi we-pulmonary kuze kube sezingeni eliphakeme. Silungele yonke imininingwane yeshubhu yokulinganisa yomsebenzi we-pulmonary , qinisekisa izinga lekhwalithi, ukuze ukulethe okuhlangenwe nakho okuhle komkhiqizo. I-Mecanmed yi-Calmonar China Calibration Tube yomkhiqizi womsebenzi we-pulmonary nomhlinzeki, uma ufuna ishubhu lokulinganisa elihle kakhulu lomsebenzi we-pulmonary ngentengo ephansi, thintana nathi manje!