Purged and pressurized systems are designed to protect sensitive equipment from contamination and environmental factors. In these systems, air or gas is used to create a positive pressure, preventing outside elements like dust and moisture from entering. This is particularly important in industries such as pharmaceuticals and electronics, where product integrity is crucial. The purging process involves removing unwanted gases or contaminants before pressurization. This ensures that the environment within the system remains clean and stable. By maintaining a controlled atmosphere, purged and pressurized systems help enhance the reliability and longevity of equipment and products.