fThis app uses special sounds to help push out water
If you want to remove dust or fingerprints from your phone, gently clean the area around the speaker with a microfiber cloth. By doing it carefully, there will be no scratches on your phone’s speaker.
Vacuum Cleaning Method
A small nozzle vacuum cleaner can be used to clean dust from inside the speaker, which will easily remove dust from the speaker. A slow suction will be fine for the vacuum cleaner so the speaker is not damaged.