What materials of glasses cannot be cleaned with a damp ultrasonic cleaner?

< span > < br / > < / span > < / p > < p > < span > when cleaning the matters need attention are: Never wash your glasses with hot water. If there is oil on your glasses, you can add a relatively neutral detergent. Please do not use alkaline cleaning agents as they can also affect the coating. Secondly, when cleaning your glasses, do not let the lenses face the bottom to avoid contact with the bottom and scratching the glasses.

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