The 30-inch horizontal flow workstation is offers a larger internal work area and the blower delivers up 130 feet per minute air flow velocity at the inlet. This benchtop air purification unit is constructed of acrylic and polycarbonate and features a hinged front lid. Many filtration packages are available to address the varying air quality concerns of today's work environments. Filtration options include 99.97% efficient HEPA, activated carbon, acid gas media, ammoniasorb media filter and media configured specifically for formaldehyde fume control applications. The SS-330-DCH can be fitted with media blend filters as large as 10 pounds. The ductless model features a built-in blower that provides strong suction across the inlet area which runs across the front of the unit. Typical uses include grind dust containment, pipetting of liquids, solder smoke removal, polishing, powder mixing and addressing odor from strong fumes. This unit is also available without a blower for connection to existing air purification equipment and please note that a positive pressure option is available. The positive pressure portable cleanroom brings filtered air into the enclosure to keep contaminants away from the materials being worked with. Please contact us if you have an application that calls for a workstation flow hood of any kind and we will assist with confirming the best hood for your facility.