The s-bag Ultra Long Performance has a large capacity of up to 5 liters (1.13 dry gallons) and its premium synthetic material filters out dust and airborne particles .3 microns and larger. It has 50% longer life than paper. Multi-layer synthetic construction allows air to flow through the bag ensuring full power suction without tearing the bag. Patented closure system makes changing your bag cleaner, quicker and more hygienic. It sets the standard for clean with high filtration level and smart, convenient design that provides less hassle for a happier, cleaner house. Contains 3 bags and 1 filter per package.