User's Manual

21
cannot guarantee that the corners of the mouth will not leak, a special mouthpiece
with lip and tooth cover can be added.
Caution:
The user purchases a detachable mouthpiece and a disposable pulmonary function
meter filter, which must be a legally marketed product registered by the FDA.
Mouthpiece specifications: inner diameter 30mm, outer diameter 32-34mm, height
50mm-120mm.
Specification of disposable pulmonary function meter filter: inner diameter 1=30mm.
3) Breathe calmly for 4-5 times. After the breathing is stable, take a deep breath, and
then exhale forcefully, quickly, and completely, in one breath.
4) Exhalation is complete, inhale strongly and quickly until it is complete, and then
breathe 4-5 times calmly to complete the test.
Caution: The same patient should not be tested more than 8 times a day!
5) Each time the patient completes a set of measured values, the monitoring page will
indicate whether the measured results are acceptable. Such as ticking is acceptable,
you can click "end" to end this test and save the data. Such as the cross is an
unacceptable result and the reason is prompted, you can click "New Test" to start a
test.
Figure 11 FVC single measurement quality control prompt interface