Polar Single Chamber Vacuum packing How can vacuuming work? Vacuum suggests ‘with out air’. A vacuum chamber machine removes ninety nine.8% of the air with the chamber and package. It then seals the packaging airtight. Polar One Chamber Vacuum packing How can vacuuming function? Vacuum suggests ‘without air’. A https://www.linpack.com/products-tray-sealing-machine-ta350-360