The "Clean Whatsapp" feature allows you to delete media files from Whatsapp like photos, videos and audio.
To use the Clean Whatsapp feature, open the app, tap on Tools tab and select Clean Whatsapp feature.
Select which type of files you want to clean, like Photos, for example.
Select which specific files you want to remove and select "DELETE SELECTED FILES".
REMINDER: All the files selected to be cleaned will be permanently deleted.