I be surprise that some people give the dust bag a high rating . base on the sawdust that I sweep up around the saw and the sawdust collect in the bag , I would roughly estimate the bag collect less than 20 % of the sawdust create . I be expect at least 60 % . it be possible that other get different result depend on the wood that they be cut and the blade that they be use . at least , I be use my saw outside on my driveway . hopefully , I will get better result use my Festool shop vacuum . I purchase the bag from Amazon . can . great service . I be please at how quickly they fill the order . I be not so pleased how the book on plumbing that be ship in the same order get crease .