Review on HAWKUNG Reusable Filament Compression Compress by Bryan Turner

These vacuum bags are essential for 3D printers. If you want quality prints from time to time, you need to make sure that no moisture gets on the filament. These vacuum bags seal in moisture, keeping your filament fresh without going through the long and tedious process of drying wet filament. Each bag will more than comfortably hold a 1kg spool of filament, and although it can be a bit difficult at first. They hold the pressure very well. I place a desiccant bag in the center of the coil to remove moisture and then seal the bag. You definitely want to use fast pumps to get all the air out and it can take a while for the pump to get a good seal. However, with a little effort, you can get a good seal that won't let moisture seep into your filament. The pouches compress enough to fit your spool of filament back into a regular filament box, or you can clearly see the filament through the pouches. Overall this is a great product that does exactly what it says it does.