Kenmore Type "O" Model 53294, 6-pack Upright Vacuum Bags, provide HEPA filtration for certified asthma and allergy friendly upright vacuums. The asthma & allergy friendly® Certification Program was created by top medical experts and is the oldest and largest nonprofit, asthma and allergy patient advocacy organization in the world, with the mission to empower consumers to make an informed purchase decision when choosing allergen-avoidance products. The Certification Program independently tests and identifies consumer products that are more suitable for the 60+ million people in the United States living with asthma and allergies.