I believe the more expensive one is higher MERV which basically means it removes more things smaller in size at the microscopic level.
Edit: The more expensive one says this about it ---> "Nissan/Infiniti has developed a new type of high-performance filter using the anti-allergenic properties of natural grape seed polyphenol. The new filter is significantly more efficient in eliminating allergens that are the cause of pollen allergy"
Edit: The more expensive one says this about it ---> "Nissan/Infiniti has developed a new type of high-performance filter using the anti-allergenic properties of natural grape seed polyphenol. The new filter is significantly more efficient in eliminating allergens that are the cause of pollen allergy"