The chamber vacuum sealer does not use any suction, which allows you to vacuum package soups, stews, marinades and other liquids. When using this kind of machine you place the pouch or jar you are sealing inside the vacuum chamber. Without using suction all of the air is evacuated from the entire chamber. There are smaller counter top machines for home use as well as commercial sized stand alone machines.
All bags and pouches may be used with this type of machine. The chamber pouches, which can only be used with chamber machines, do not have the mesh lining required for suction bags.