Logi-Clean Horizontal Flow Hepa Benches deliver a shower of focused clean air for a variety of applications. Units are 99.99% Efficient @.03 Micron, include built in lighting, variable speed fan control, stainless steel work surface, stainless steel plenum/control panel, powder coated steel frame, acrylic side shields and casters. Many other options are available. Standard sizes are 4', 6' and 8'. Custom sizes are also available.