The answer to 'cleaning schedule for dryer vent' is that you should have your dryer vent cleaned at least once a year, or more often if you notice any issues. Keeping your dryer vent clean is important for fire safety and to maintain the efficiency of your dryer. Over time, lint and debris can build up in the vent, which can restrict airflow and become a fire hazard.
It's recommended to have a professional cleaning service inspect and clean your dryer vent annually. They have the right tools and expertise to thoroughly clean the vent and ensure it's functioning properly. If you notice any issues like reduced airflow, longer drying times, or visible lint buildup, you should have it cleaned more frequently.