Safety filters serve two functions: they act as a backup to the primary filter and protect the engine during primary filter servicing.
• Serve as a backup filter in case of primary filter damage or improper installation.
• Prevent contaminants from entering the clean side of the air intake system during primary filter servicing.
• Designed to plug rapidly if contamination passes the primary filter, alerting operators to an issue.
• Recommend replacing safety filters with every third primary filter change unless the primary filter has failed.
