The answer to 'how to maintain dryer vent cleaning' is to clean your dryer vent regularly to prevent fire hazards and improve efficiency. Proper dryer vent maintenance involves inspecting, cleaning, and replacing the vent as needed.
Start by visually inspecting the exterior vent opening for any blockages or lint buildup. Use a dryer vent cleaning brush or vacuum hose attachment to remove lint from the vent. You should also periodically detach the vent from the back of the dryer and use a flexible dryer vent brush to clean the entire length of the vent. Replace the vent if it's damaged or excessively worn.