Save Now on All Sizes & Styles of Vacuum Packaging! Vacuum Bags are used in food service, medical, clean room, and many other industries. Barrier bags are used for vacuum sealing because polyethylene or polypropylene bags are both porous and cannot hold the vacuum for long term storage. We offer a variety of Wholesale Vacuum Bags in a many different sizes to fit your vacuum sealing needs. We offer 3 Mil, 4 Mil, With a Zipper, With a Tear Notch, and more.