Replace the Mazda 6 Cabin Filter with a Carbon or a Pollen Filter by Bosch. Mazda reccomends changing the ACC Cabin Filter every year on your 6.
Remember to replace the Mazda Air Filter in your 6 every year or 12,000 miles. DriveWire Has all name brand Mazda 6 Air filters at Discount Prices.
Be sure to replace the Mazda 6 oil filter with a genuine or equivalent quality filter. We reccomend changing the oil filter every 3000 miles on your Mazda 6.