Unfortunately, the Booflet is another in a long series of devices which I have had to add to the "doesn't work as advertised" category. When I first bought mine many years ago, my initial reaction was that it seemed like a well made quality device which should work well. But for whatever reason, it just didn't seem to pick up the dust, lint, and other debris like it was supposed to. I actually still have mine (including the full stack of cleaning paper), and it is for sale at a good price if anyone wants to see if they can make it work better than it did for me!
For reference, two other dust control devices which have been disappointments to me include the antistatic brush (the one with the little piece of polonium in it) which in my testing proved to be no better than a regular brush at removing dust; and secondly, the white cotton gloves that everyone seems to tout. I've tried at least two different brands of the latter which were advertised as being "lint-free", but in my experience they still tended to spew fibers onto the film. Perhaps I just bought the wrong brands. But nowadays if I need that level of protection while handling film, I rely on latex or nitrile gloves.
My standard dust control methodology now is a combination of minimizing sources of dust as much as possible to begin with, wearing latex gloves for key activities, and then using compressed air as necessary to blow off any residual dust/fibers prior to scanning. I also place the film in sleeving material immediately after development and drying (this is one of the places where I use gloves). I should note that using the comressed air effectively takes some practice in order to avoid spewing propellant onto the film, but with care it works well.
By the way, one of the most effective dust removal methods I have discovered is a DIY electrostatic technique requiring a suitably sized artist's brush in conjunction with canned air. I forget exactly where I read about this technique, but basically what you do is to blow comressed air through the bristles until they pick up a static charge (which you can see by the bristles starting to splay apart from eachother), and then swipe the brush over the film. This seems to be more effective than just blowing compressed air over the surface. It has the downside of requiring a LOT of compressed air, and for that reason I don't use it very often.
Jeff