| http://www.w3.org/ns/prov#value | - nice gentle curve on it.It does have it is downside, but nothing what so ever to do with power of the suction.The first little downside is that you have to have a good guess as to when the bag is full, either that or keep opening the machine up to have a look, as there is no indications such as a light to tell you the bag is full.
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