MOVEABLE DUST-FREE DRY SANDING SET DESCRIPTION: The Moveable Dust-Free Dry Sanding Set equipment involves sophisticated technology. It is responsible to reduce sanders oxygen consumption which increases product life cycle. The equipment collects the dust through motor which locates under automatic control of IC. When sander turns on its automatic switch of induction sets in motion to aid the dust collection. After the machine goes off, dust collector works 5 to 8 seconds beyond to suck up remaining dust particles.