Powerful, cleaning very costly

Used the ash vacuum cleaner for my two fireplaces, at the beginning TOP ... very powerful and you get everything super clean.
After about every 2nd use of the filter, however, is completely sealed. One gets not as fast again clean or not. Not for nothing are at the two replacement filters.

Was it actually the verge of throwing away ... AAAAB:

Which is ideal as a car vacuum cleaner, you can get pretty much sucked away any crap, sometimes gummy bears of my two children who tümmeln in any cracks of the car. Thus, the filter is not too long, because everything ends up on the dust in the bucket.
Now if you could be a Reduzierbürste it, I would sell him rather than car vacuum cleaner: D