Our plastic bags are made from state-of-the-art high-barrier materials, which act like a metal wall to block gas molecules, effectively sealing in odors and preventing any leaks. Regular plastic bags, on the other hand, are made from PE material, which doesn't provide this gas-blocking capability. Our plastic bags have two key features. First, they are crafted from high-barrier materials, and second, they consist of seven layers. As a result, our plastic bags offer unparalleled odor resistance, helping to keep your baby's nursery fresh!