MURPHY FRESH AIR M

DUST COLLECTION AND FUME REMOVAL EQUIPMENT-NAMELY, EQUIPMENT FOR COLLECTING AIR AND FILTERING PARTICULATE MATTER FROM THE AIR COLLECTED, STORAGE BINS FOR RECEIVING THE PARTICULATE MATTER REMOVED, EQUIPMENT FOR REMOVING THE PARTICULATE MATTER FROM THE STORAGE BINS, EQUIPMENT FOR DISPOSING OF THE PARTICULATE MATTER REMOVED FROM THE STORAGE BINS, AND EQUIPMENT FOR COLLECTING AIR AND FILTERING FUMES FROM THE AIR COLLECTED