AS608/AS608e Operation Manual Page31
After each examination of a patient, it should be ensured that
there is no contamination on the parts in connection with the
patient. General precautions must be observed in order to avoid
that disease from one patient is conducted to others. If ear
cushions or eartips are contaminated, it is strongly recommended
to remove them from the transducer before they are cleaned. By
frequent cleaning water should be used, but by severe
contamination it may be necessary to use a disinfectant. The use
of organic solvents and aromatic oils must be avoided.
Great care should be exercised by the handling of earphones and
other transducers, as mechanical shock may cause change of
calibration.