Helium leak testing is crucial in the pharmaceutical industry to ensure the integrity of packaging components, such as vials and syringes, which are vital for maintaining drug safety and effectiveness. This method utilizes helium's small atomic size to detect extremely tiny leaks, ensuring airtight packaging that protects against contamination. Helium is an inert gas, making it safe for sensitive drug products during testing, which is particularly important for high-value items like vaccines and biologics. Additionally, helium leak testing is efficient and versatile, applicable across various packaging formats and able to operate under ultra-cold storage conditions.