Pollen filters work to remove pollen particles from the outside air before it's passed into the cabin via your air conditioning or heater system, which is why they are often called Cabin Filters. It is important to change a Pollen Filter regularly to maintain a healthy cabin. Pollen filters, like any filter, need changing regularly in order to maintain a good level of performance. In this video RoughTrax demonstrate how quick and simple it is to change a Pollen Filter on a Toyota Hilux, it is the same procedure on virtually all Toyota 4x4’s. Click here to view all Pollen Filters for your Toyota 4x4.