I be really hope this bag would help collect some of my sawdust . after a week of use it about two inch of dust have accumulate in the bag . actually most of the dust blow out of every other opening in my bosch saw . the bag seem to catch bigger shaving . I have not be saw any mdf or fine dust produce material so it may help more with those . the problem seem that all the shaving keep clog up in my dust port . on the plus side the bag have a squeeze clamp on it so it will work on just about anything .