Globally renowned as the workhorse of commercial kitchens everywhere blue seal turbofan convection ovens offer uncompromising power performance and reliability the e28m4 model features a reduced footprint saving precious kitchen space however this turbofan is the largest of the 20m series and can easily accommodate four 460 x 460mm full size sheet pans within the easy clean interior the twin bi directional fans ensure even heat throughout the oven making cooking easy consistent and fast