Ensure continuous protection for your engine with the Donaldson safety air filter. Designed as a fail-safe in the event of primary filter damage or improper installation, it acts as a reliable backup, providing an added layer of defense. This filter's primary function is to prevent contaminants from infiltrating the clean side of the air intake system during primary filter servicing, safeguarding your engine's performance. In the event of contamination bypassing the primary filter, the Donaldson safety air filter features a rapid plugging mechanism that serves as an alert to operators, prompting them to take immediate action. It is recommended to replace safety filters every third primary filter change, or in the event of primary filter failure. Compliant with ISO 5011 standards, this filter upholds high-quality performance.