ALLERGEN - Our vacuum bags have a 3-ply advanced fiber filtration system that is almost 100% efficient down to 1.0 micron and can capture particles as small as 0.1 microns. Ideal for Asthma and Allergy sufferers! QUALITY DESIGN - These bags fit Electrolux Discovery I, Discovery II, Discovery III, Genesis, Genesis LX, Genesis LXE, Prolux, Regency, Xtreme upright vacuums. PERFECT FIT – Compare to the Electrolux Style U bags. Fits just like the OEM bag! GREAT VALUE - Receive 12 replacement bags! These bags fit Electrolux Discovery I, Discovery II, Discovery III, Genesis, Genesis LX, Genesis LXE, Prolux, Regency, Xtreme upright vacuums. Compare to the Electrolux Style U bags. Fits just like the OEM bag!