Vacuum testing is a method used to assess the integrity of seals and components in various systems. By creating a vacuum, technicians can detect leaks or weaknesses in materials, ensuring that products like automotive parts or packaging maintain their quality and performance. This process is essential in industries where airtight conditions are critical. During vacuum testing, a device is placed in a sealed chamber, and air is removed to create a low-pressure environment. Any changes in pressure can indicate a leak, allowing for quick identification and resolution of potential issues. This technique is widely used in manufacturing and quality control processes.