All Levapack machines is manufactured following Intercontinental requirements and has the appropriate Intercontinental certificates which include ISO 9001, CE, and RoHS confirming that every unit holds the agreed amount for protection, trustworthiness, and environmental safety. From the sealing chamber, plastic movie is warmth-sealed over the top with the tray https://www.linpack.com/news/step-into-the-future-with-advanced-vacuum-packaging-machine-technology