Using the Mini Electric Vacuum Pump is easy. First, connect it to the airlock Filament Vacuum Sealing System. You can power it with our power banks for easy portability or use a regular USB - C phone charger. Place your filament in an airlock bag and use the pump to remove the air. When ordering, don't forget to use the AIRLOCKPACKAGE coupon for $10 off when you buy the pump and bags together. Keep in mind that you need to purchase airlock bags separately to fully utilize the system. For maintenance, keep the pump clean and dry. If you're not using it for a long time, store it in a cool, dry place. And always check the USB cable for any signs of damage before each use.