Venetian blinds are typically cleaned in an ________ ultrasonic machine or on what kind of surface?

The appropriate method for cleaning Venetian blinds involves utilizing an ultrasonic machine that operates on a padded surface. Ultrasonic machines are effective for deep cleaning as they use high-frequency sound waves to remove dirt and grime from surfaces, including the intricate slats of Venetian blinds. The padding underneath helps to protect the blinds from scratches or damage during the cleaning process, providing a gentle yet thorough clean.

Using a padded surface in conjunction with ultrasonic cleaning ensures that any vibrations from the machine do not cause harm to the blinds, maintaining their structure and finish. This combination maximizes the effectiveness of the cleaning process while safeguarding the integrity of the blinds. In contrast, other cleaning methods mentioned in the choices do not align with the recommended practices for cleaning Venetian blinds and may not effectively clean them without risking damage.