The engine air filter element for the 2AR-FE 2.5 liter inline four cylinder motor in a fourth generation (2013, 2014, 2015, 2016 and maybe also the updated 2017) Toyota RAV4 should be cleaned at every oil change and replaced when overly soiled. Take a look at my DIY instructions for the procedure by clicking on the text link or thumbnail image below.
2013-2016 Toyota RAV4 Engine Air Filter Replacement Guide
