I purchased an Atrix Express vacuum a few years ago and am quite pleased with it. It is noisy but cheap. The Omega (next level up) has sound baffling so if your budget allows, that’s preferable. Also, for a small extra charge, I could have purchased a longer power cord, which is something I’d recommend. The HEPA filter is not reusable so you do have to purchase a new one when the existing one is full. I was advised that I’d know this because the suction is decreased.
The people at the plant are easy to deal with and because they manufacture them, they can advise you appropriately. They make a back pack model, too.