The safety air filter is designed to serve as a reliable backup in case of primary filter damage or improper installation. It effectively prevents contaminants from entering the clean side of the air intake system during primary filter servicing. This filter is engineered to plug rapidly if any contamination bypasses the primary filter, providing a clear alert to operators about a potential issue. With a length of 15.16 inches, inside diameter of 3.54 inches, and an outside diameter of 4.21 inches, it complies with ISO 5011 standards.