Panasonic U/U3/U6 Replacement Micro Filtration Vacuum Bags Designed for Panasonic Upright VacuumsPanasonic U, U3 and U6 rreplacement Micro filtration vacuum bags designed to fit Panasonic upright vacuums using Type U, U3 and U6 bags. Advantage brand microfiltration bags are constructed of a strong paper outer layer and fine micro liner that captures microscopic particles. Advantage microfiltration bags are great for allergy sufferers. Capture microscopic particles, germs and bacteria 99. 7% OEM quality Quick easy to replace Disposable Features