MicroFiltration for a healthier home. Designed to fit: Hoover Type: Y/Z. Allergen trapping Finer-Liner. 99.7% filtration. 2-ply bag with Finer-Liner. Traps allergens & microscopic particles that standard bags allow to recirculate. Perfect for allergy sufferers. Reduces suction loss to double performance of your vacuum cleaner! Dust mite debris; grass pollens; ragweed pollens; household fibers. Doubles Vacuum Performance: Using these bags will more than double the performance of your vacuum cleaner. Finer-Liner vacuum bags are made of discontinuous micro fibers which capture a wide range of dust particles including many pollens, spores, bacteria, dust mites and allergens. As the bag fills with dust, the Finer-Liner allows more airflow than with conventional bags. This reduces suction loss so your vacuum cleaner works more efficiently, more effectively and delivers more vacuuming power to provide a better clean. 99.7% Filtration for a Healthier Home Environment: Finer-Liner vacuum bags are 99.7% efficient (down to 5 microns) and can capture particles as small as 0.1 micron, which helps to prevent dust and irritants from being recirculated throughout your home. Guarantee: The enclosed vacuum cleaner bags are guaranteed against defects in construction and materials. Should a bag fail under normal home usage, we will send you a replacement at no charge. Return the defective bag along with this guarantee to: Rug Doctor, 415 C Axminister Dr., Fenton, MO 63026. For more information on renting or purchasing Rug Doctor products call 1-800-RUG-DOCTOR (1-800-784-3628) or visit us on the web at: www.rugdoctor.com. Made in USA.