Kenmore 20-50688 / 20-50690 ( Style U and Style O ) Envirocare Anti-Allergen Vacuum Bags. Aftermarket Replacement. Envirocare Anti - Allergen vacuum bags are made from synthetic material that offers 99.9% filtration trapping microscopic particles and allergens. Anti - Allergen Vacuum bags are stronger than paper, will not tear and offers better airflow for enhanced vacuum performance. Made by Envirocare Technologies. Fits upright series (includes Wispertone). Also Fits Panasonic U-2, Miele type Z. Sug Retail $8.99 Buy 8 packages or more and receive Free Shipping!