his benchtop unit features over 28" (711 mm) of vertical clearance with the access shield open. The dual impeller blowers provide ample ventilation under filter load to maintain exhaust air speed >/= 100 fpm (.51 m/s) for safe operation and worker protection. A polypropylene tray collects chemical spills, and quick-release clamps ensure easy access to activated charcoal and/or final HEPA filters. The sloped front access provides full view of and access to work in progress. Includes two (2) 1200CFM (2038.81 m³/h) blowers (rated at 0" static pressure). Overall nominal dimensions: 31.5"W x 24"D x 34"H (800 mm x 610 mm x 864 mm), 48"H (1219 mm) with filter/blower module). Access shield clearance: 15.5" (394 mm), closed; 28.25" (718 mm), open.