Wood Dust Collector Mounting Type Mobile Dust Collector Type Single-Stage Filter Type Bag Nameplate Voltage 115V AC Air Flow - Maximum 650 cfm Filter Efficiency 96 Percent of 30 micron particles Main Inlet Diameter 4 in Number of Adaptor Inlets Not Applicable Adaptor Inlet Diameter Not Applicable Lower Collector Type Bag Lower Collector Capacity 2.1 cu ft Sound Rating - Maximum 70 dBA Amperage 7.0 / 3.5 A HP 1 hp Includes (4) Casters Lower Collector Diameter 14 in