Description Description Deviser DW-420S Cleanroom Laminar Blower Fan 110/220 Volt AC - No Filter Input Power: AC 1 220V/110V, 60Hz AirTech Gasket Seal Air Filter Dimension: 22.5 x 22.5 x 3 (570x1170x70mm) HEPA filter is NOT included, filter in the photos is USED, it came with the unit and is shown in photos for an example of its setup / use. View AllClose