DIY Vacuum Pump for 1 minute, How to make a vacuum pump from a syringe

Hello. In this video I will show how to make a vacuum pump in one minute. This syringe vacuum pump can be used for packaging and storage of food, as well as for pumping air from the vacuum chamber. To make a vacuum pump with your own hands, you will need: 100 ml syringe A tube Ballpoint pen with button Balloon Metal ball Adapter from tube to needle I also recommend watching the video: