This cabin filter element captures airborne dust and pollen before they enter the operator enclosure. It sits in the housing located inside the cab, typically behind the operator seat or under the roof panel. The filter media traps particulate that would otherwise circulate through the HVAC system and into the breathing zone. A loaded filter reduces airflow, causing the blower motor to work harder and potentially fogging the windows during humid operation. Purro manufactures this element to match the original housing's seal profile, ensuring that unfiltered air does not bypass the media. On replacement, inspect the housing gasket and clean the sealing surface before installing the new element.