Seems to be a nice unit, but Vevor doesn't give you any detailed Instructions on how to use the settings. I have sealed some items and it seems like it can remove a little more air, but the pressure gauge goes all the way to maximum and it still seems like it could take some more air out. It doesn't seem like you can seal liquids like soup, etc. because it runs out before it seals. Vevor, please give us instructions on how to set and use the device. Otherwise it seems like it seals great.