"david lang" wrote:

Don't fall for the 'bagless, no reduction in suction' cobblers. True,
bagless cyclone vacs don't lose suction as they fill, but they have a
suction level so low that a nearly full bagged Numatic still has better
suction.

To eliminate the possibility of confusion on the merits of the various
cleaners could you quote the minimum pressure achieved at the nozzle
and the corresponding air flow for:

a) a bagless cyclone
b) a nearly full bagged Numatic
c) an empty Numatic

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