Each box of Miele FJM bags includes the newest and upgraded. 4 HyClean dust bags. 1 super air clean filter. 1 dust compartment filter. Miele FJM vacuum cleaner dust bags fit the following Miele compact style canister models: S241 thru S256i. S290 and S291. S300i thru S399. S500 thru S578. S700 thru S758. S4000 thru S4999 (Galaxy Series). The Miele FJM Intensive Clean Plus bag has been upgraded to the Miele FJM HyClean bag. FJM bags will still fit older Miele canisters that use a Miele Type F, Type J, or Type M dust bag.