Which dust extractor ?

The world is full of machines which can do things orders of magnitude faster than a human can.
Of course. In fact, in this case, the actual difference is effectively far greater than the 10-20-fold difference I mentioned. Whilst a human can manage 5 litres/sec for one second, they obviously cannot do it continuously!

I'm still a little surprised that the extractors shift air as fast as we're being told, but that is clearly the case!

Kind Regards, John
 
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Assuming (reasonably) that it meets the minimum (pitiful) guidelines of AD F, a poxy little bathroom fan will shift 15l/s. The same guidance says 60l/s for a kitchen extractor.

A decent, (but far from monstrous) 6" inline duct fan will do well over 100l/s.
 
Assuming (reasonably) that it meets the minimum (pitiful) guidelines of AD F, a poxy little bathroom fan will shift 15l/s. The same guidance says 60l/s for a kitchen extractor. A decent, (but far from monstrous) 6" inline duct fan will do well over 100l/s.
Thanks. I suppose I've probably never thought about it very much - but these flow rates just sounded hight to me. One learns something every day.

Kind Regards, John
 
Thanks all for the interesting replies. I do love how topics on these forums drift from the original questions. I've suppose I've learnt a little more on air flow but still have no better recommendations on brands to buy and no better off.
 
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Thanks all for the interesting replies. I do love how topics on these forums drift from the original questions. I've suppose I've learnt a little more on air flow but still have no better recommendations on brands to buy and no better off.
I've just had a quick look around, and an awful lot of them seem to be in the 50-70 litres/sec range - but even they can go from under £100 to several hundred pounds - and there are a few cheaper ones with about half that airflow.

The one exception I've found is this one which, if it's telling the truth, gives over 300 litres/second for £189.

Kind Regards, John
 
That's not a fine dust extractor though, and you'd have trouble connecting that hose to a chasing tool.
True - I didn't look particularly closely at it. I mentioned it because, of those I found with a very quick search, it stood out as having a much higher extraction rate than most.

Kind Regards, John
 
I have a 110V Metabo tracker (chaser) along with a 110V Metabo hoover with auto start.

I also have a 110V Hilti hoover.
 
along with a 110V Metabo hoover with auto start.

A man of few words - obviously not suited to this site.

But how well do they work, and which models so we can help the the airflow argument.
 

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