a filter bag for a filter device includes a tubular , flexible , air - penetrable filter body provided with a suspension arrangement at an unfolded end thereof . the suspension arrangement includes a rigid ring element with outwardly protruding members 10 annularly secured to the unfolded end of the filter body . the ring element is arranged at least partially at an interior part of the filter body . also a filter device including a housing with a dust chamber and a clean - air chamber that are separated by an partition wall suspending at least one filter bag as described above that extends through an opening provided in the partition wall with a main part of the filter body located in the dust chamber . the ring element of the filter bag extends at least partially into the opening in the partition wall .