In the landscape of modern packaging, vacuum bags stand as a transformative innovation, redefining how products are preserved, transported, and consumed across industries. A vacuum bag operates on a simple yet powerful principle: removing air from the packaging to create a sealed, oxygen-free environment. This process not only extends shelf life by preventing oxidation, spoilage, and microbial growth but also protects against moisture, dust, and physical damage. From food and pharmaceuticals to electronics and industrial parts, vacuum bags have become an indispensable tool for businesses seeking to enhance product integrity, reduce waste, and improve cost-efficiency. This article explores the core types, technical advantages, industry applications, and comparative benefits of vacuum bags, with a detailed analysis of leading formats.