Use your hand or a vacuum cleaner hose to clear and loosen the lint and debris in your vent. In addition to the vents, they can also check over all of the equipment, run tests and make sure that they are working to their potential. Repeat the cleaning process on the tubing you just removed. You will also need a couple of brushes--a wire brush with stiff bristles being the most important. One such example is clothes dryer vent maintenance.