HyClean 3D Efficiency FJM dustbag Filters more than 99.9% of all dust particles Maximum efficiency when vacuuming at low power level Longer service life with 3D dustbag technology Clean bag replacement thanks to automatic bag shutter Contents: 4 Bags / 2 Filters Suitable for the following models S6 , S4 S700-S799 S500 - S578 S300i-S399 S290 - S299 S241 - S256I Compact C2, Compact C1, Complete C1