the key to a vacuum sealer is the pump :
it cost more , but get an oil pump if you can.
the others petter out due to the moisture.
I had and still have
it was a little less expensive ( ? tariffs again ? ) when I got it
but after a few years the pump gave out as its not an oil pump.
I sent it back for repair , which was far from free
they replaced the gaskets which were fine
and it never sealed well again.
so I dug deep and got the Vacmaster VP 215
before TrumpTrade and I do not regret it in any way.
Trumpster is another matter entirely