Ensure uninterrupted engine performance with the Donaldson safety air filter, a reliable backup in the event of primary filter damage or improper installation. Its primary function is to shield the clean side of the air intake system during primary filter servicing, preventing any contaminants from infiltrating. Engineered for swift plugging in case of contamination bypassing the primary filter, it promptly alerts operators, ensuring timely intervention. It is recommended to replace safety filters every third primary filter change, or in case of primary filter failure. Compliant with ISO 5011 standards, this filter is a testament to high-quality engineering.