Beam systems are practically maintenance free. No lubrication or cleaning is ever required. Beam’s filters have an exclusive self-cleaning design from the makers of GORE-TEX® fabric, which is five times stronger than other leading filtration media. The filter shakes off dirt and protects the motor so a Beam system works like new every time. Because the filter is permanent, there is never a need to replace dirty, messy bags. Just empty the dirt receptacle two to three times per year.