Kenmore 20-50688 / 20-50690 ( Style U and Style O ) Allergen Performance Vacuum Bags. Fits upright series (includes Wispertone).Best Choice for asthma and allergy sufferers. Synthetic filter media will not support growth of mold, bacteria or mildew - fine dust retention & increased capacity without losing suction Also Fits Panasonic u-2,Miele type Z,Sanyo upright. Sug Retail $12.99 Buy 5 or more and receive Free Shipping!