What are the best practices for maintaining an external dryer vent to ensure efficient and safe operation of the dryer?

To maintain an external dryer vent for efficient and safe operation, regularly clean the vent to remove lint buildup, ensure the vent is properly installed and sealed, check for any obstructions or damage, and consider installing a vent cover to prevent pests and debris from entering. Regular maintenance will help prevent fire hazards and improve the efficiency of your dryer.