Rob here at etrailer.com, and today we'll be taking a look at the PTC custom fit cabin air filter on our 2019 Toyota Tundra. Now, what a cabin filter is going to do for your car is the same thing that your furnace filter does for your house. It's going to filter out all that debris, dust and everything else before it comes through our vents. So if we have breathing problems like asthma or anything… see more >