Total System Solutions . Typhoon Slant Wall Exhaust Fan The Typhoon slant wall exhaust fan from J&D Manufacturing has a heavy gauge galvanized housing and X-frame motor mount ta provide a solid structure. Typhoon fans include an aluminum shutter with tia bar and galvanized shutter clips to half the shutter tight to the farms for lass vibration. With a quick twist of tha clips, the shutter can be samovar far says cleaning and maintenance.