If you've noticed your dryer taking longer to dry your clothes, or noticed a lot of moisture building up in your laundry room, or even a musty smell. These are signs that your dryer vent is clogged, preventing the dryer from venting properly. Eventually, this can lead to a dryer fire! The Boxlegend Dryer Vent Cleaning Kit works in conjunction with a vacuum to help remove years of lint buildup from your dryer vent, helping your unit run more efficiently.