Design 95 fans are rated with a maximum fan efficiency grade (FEG) of 90 in accordance with the Air Movement Control Association (AMCA). FEG grades industrial fans’ peak mechanical efficiency relative to its wheel diameter, and a rating of 90 is the highest in the industry. The rugged industrial fan is built to handle most harsh environments. The backward-curved wheel design withstands demanding applications such as industrial dust collectors, thermal oxidizers, and forced or induced mechanical draft. The fans are available in sizes 182 to 890, in construction classes 2 through 5 and in nine unique arrangements, with a maximum airstream temperature of 800°F (426°C).