I have the Power Smith 101 ash vac. Does a great job, but the filter bag plugs during use and has to be shaken out after each use. If not done, all vacuum disappears as the motor chokes down. :help:The bag protects the motor filter from getting "ashed". I may just remove the bag and see how long it takes the motor filter to plug. NOT! Those of you who have this unit know what I mean.