Just a FYI for the good Bitog people. Denso Products has free shipping on their air filters and I know for my Toyota Camry and Prius they were very cheap for the OE quality. My Camry filter is under $7.
https://www.densoproducts.com/Automotive-DensoProducts-l1351.aspx
https://www.densoproducts.com/Automotive-DensoProducts-l1351.aspx