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A few years ago I bought a Makita wall chaser which was on special offer at the time. I got a Nilfisk Alto Aero 25-21 vacuum cleaner (from Screwfix) to go with it. The rate of dust generation certainly is phenominal but the Nilfisk copes with it. The secondary filter is huge and there is a backflow button to allow momentary flow reversal to clear it if it does get clogged.
I also use the Nilfisk when SDS chasing, with the end of the hose right next to the business end of the chisel. This makes an enormous difference to the amount of dust that would otherwise get everywhere.
Using it this way the hose does block from time to time and it needs firm squeezing to free up the jammed bits of masonry.
John