I use a Miele vacuum paired with a cyclone separator. Miele vacuums have more suction that many shop vacs and have a secondary fan on their exhaust which shifts the noise up into the ultra sonic range making them considerably quieter. Mine also have a speed control. I have run hour long jobs and the Miele hasn’t gotten particularly hotter than it does after five minutes. They are expensive new though. I recommend finding one on eBay.
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