What is the best way to clean a dryer vent using a dryer vent cleaning brush?

The best way to clean a dryer vent using a dryer vent cleaning brush is to disconnect the dryer from the power source, remove the vent cover, insert the brush into the vent, and rotate it to remove lint and debris. Repeat this process until the vent is clean, then reattach the vent cover and reconnect the dryer.