I have a venturi pump from Vaccon (https://www.vaccon.com/standard-prod...mps-vdf-series) for vacuum pods. McMaster Carr re-sells these as well. My air generator consumes up to 3cfm of air, so you will need a good sized air compressor. I can generate up to 25" - 29" Hg vacuum. It is quiet at lower settings, but if I open it up it is noisy because I am basically exhausting air at 3cfm out a relatively small port. If you know how fast you want to evacuate the air and what vacuum level you need you might want to call them. They were very helpful in guiding me to the correct unit for my application.

Joe has an article too: https://www.joewoodworker.com/veneer...ng-chamber.htm