PowerQUAD™ ULPA Filter w/ Pre-Filter Bag Model No PQ635U

The ULPA (Ultra Low Penetration Air) Cartridge Filter is designed to capture even the tiniest particles, meeting the highest industry standards with 0.1-micron filtration at a minimum of 99.999% efficiency. It’s perfect for handling allergens, mold, pollen, superfine powders, and more. An added Cloth Pre-Filter Bag offers an additional filtration stage, extending the cartridge filter’s lifespan. This filter is compatible with all Guardair PowerQUAD™ 55, 30, and 20-Gallon Drum Vacuums and Vacuum Generating Heads.