20
8) The turbine is forbidden to be washed under running water or be placed under
direct air pressure.It is forbidden to be washed by hot fluids.
8. Storage and Maintenance
8.1 Storage conditions
1) Storage environment: please see “Transportation and storage environment” section
for details.
2) Avoid direct sunlight, good ventilation, no corrosive gas, far away from heating
device or open fire.
3) After use, this device shall be cleaned and disinfected in time. After it is
completely dried,it shall be stored in the packing box and avoiding impact.
8.2 Maintenance
1) Please use this device under normal conditions.
2) Do not use this device near the heating device or open fire. It is forbidden to use
microwave oven, oven, blower to dry this device.
3) Do not expose this device to corrosive liquids and gases.
4) Do not twist the USB cable.
5)If you have any trouble during using process, please seek solutions according to
“Trouble Shooting” section. If this device still cannot work normally, please contact
the manufacturer or the distributor.
6) Please charge this device when it is in low-battery state.
7) If the device is not used for a long time, it should be charged every 6 months,
which could greatly extend the battery service life. Users are forbidden to replace the
battery by themselves.If necessary, please contact the manufacturer or the distributor.
8)This measurement principle ensures accuracy and reproducibility, without requiring
regular calibration.
9. Contraindications & Precautions and suggestive contents
9.1 Relative Contraindications for Spirometry
Due to increases in myocardial demand or changes in blood pressure
Acute myocardial infarction within 1 wk
Systemic hypotension or severe hypertension
Significant atrial/ventricular arrhythmia
Noncompensated heart failure
Uncontrolled pulmonary hypertension