Electrolux EL205B 4-Pack of Upright Electrolux Oxygen 3 Vacuum Cleaner Bags Nullify Imported Better Air Quality Means Better Quality Of Life - The Oxygen 3 Upright Bag Is The Perfect Bag Choice For Your Oxygen 3 Upright. These Electrolux Vacuum Bags Capture Ultra-Fine Particles For Cleaner Indoor Air, Leaving You Free To Think About Other Things Than Air Quality. They Also Come With A Motor Filter As An Added Bonus 4 New Bags And 1 Motor Filter Per Package Estimated Annual Usage - 8 Bags (Regular Cleaning), 12 Bags (Frequent Cleaning). Note: Frequent Cleaning Is Recommended If You Or Someone In Your Family Suffers From Allergies Or If You Have A Family Pet Fits Models - Oxygen 3 Upright El5035 Series