With attention to some simple maintenance, you can reduce your risk of dryer fires—which cause an estimated $35 million in property damage and losses every year.

A new report by the U.S. Fire Administration estimates that 34 percent of the 2,900 residential clothes dryer fires each year are caused by a failure to clean lint from the unit. Lint, which is highly combustible, collects in both the dryer and the vent, leading to reduced airflow and an increased risk for fire.

To reduce your risk, clean the lint screen before or after drying each load of clothes. You should also periodically clean the dryer vent and exhaust duct, and have a certified technician clean and inspect your dryer and venting system on a regular basis. Beyond lint, small birds or animals sometimes nest in dryer exhaust vents, which can also block airflow.

If you dry foam-backed rugs or athletic shoes in your dryer, your risk for reduced airflow also increases, which can cause your dryer to overheat.

A final tip: Don’t leave your dryer on when you’re not at home. Make sure you’re there to monitor it, and immediately address any problems that might occur.