This wall mounted filtered air supply fan is an axial flow fan designed for supplying filtered air wherever it is required. These modular constructed steel units are predrilled for ease of assenbly. Each unit consists of a V-bank filter cabinet and a fan section. The fan section includes a direct drive or belted panel fan and is supplied with a 17" x 22" gasketed access opening. Other panel fans may be selected for use based on 1/8" pressure drop for a face velocity of 520 feet per minute.