Band sealer with nitrogen flushing (Air Flushing) - YouTube
Amazon.com: Continuous Band Sealer Inflation Nitrogen Film Sealing Machine CBS900 Expanded Food Band Sealer with Steel Wheel Printing 110v, 0-12m/min, 0-300°C : Home & Kitchen
Shree Hari Nitrogen and Air Flushing Band Sealer (Pouch Sealing Machine)