Upper Nazareth Fire Dept. was dispatched @ 06:51 to a commercial structure fire at Martin Guitar. Our initial report was that one of the dust collectors was on fire. Upper Nazareth Fire was assisted with fire crews from Lower Nazareth fire and Nazareth Fire Dept.'s. Fire crews on arrival found smoldering dust within the dust auger and was extinguished quickly with minimal damaged to the dust collector system. Fire crews cleared the scene after about 1 hour.