500X Less Oxygen Permeability
compared to other plastic bags on the market

The most common example of "oxidation" is when the color of a freshly cut apple will change from a bright yellow to a darker yellow-brown after a period of time. This change is because the enzymes in the fruit undergo a chemical reaction that produces pigments after being exposed to oxygen. The same is true for meat preservation.

Meat will deteriorate after long-term storage because oxygen free radicals react with meat protein, fat and other components, changing the original properties of these molecules.

In the body of animals, there was originally a system that can reduce the oxidation that occurs in the body, but after the death of the animal, the "antioxidant" system in the body cannot continue to operate. Sliced meat is exposed to oxygen even more and the oxidation is accelerated causing the meat to deteriorate. Therefore, blocking oxygen is very important for the preservation of meat
The content of oxidation from CAS website:
http://www.naif.org.tw:8080/securitycontent.php?id=70&page=1