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Press and hold the Strong power button to start and allow the
suction to clear the mucus, Press and hold the Weak power
button to start and allow the suction to clear the musus.
NOTE:
This mucus may not immediately be visible in the collection reservoir. It
is recommended that the silicone tip and aspirator head be removed
and rinsed between each use to keep any mucus from drying and
clogging the device.