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PrimePacHy posted on r/mache3w
Don't get the cheapest one, get a premium one for better filtration. I went with this $20 from Walmart: https://www.walmart.com/ip/FRAM-CV12772-TrueAir-Premium-Cabin-Air-Filter-with-N95-Filter-Media-for-Ford-and-Lincoln-Vehicles/1872500402