Purolator A33380 PurolatorOne Air Filter Multi-fiber, high-density media traps up to 99% of dirt, dust and soot Protects up to 12 months or 12,000 miles, always refer to your owners manual for the recommended maintenance schedules for your vehicle Helps prevent engine wear May improve acceleration up to 11% with a new air filter (U.S. DOE study) Gaskets provide a tight seal to ensure that only filtered air reaches the engine