This cabin filter removes airborne particulates from the air entering the operator station. It sits in the filter housing located in the cab air intake path; the filter media traps dust and pollen before the air reaches the HVAC evaporator and blower assembly. A clogged filter reduces airflow, leading to poor defogging performance and increased fan noise as the blower compensates. The filter uses a pleated media construction that matches the housing seal profile, ensuring that all incoming air passes through the media rather than bypassing the filter edge. On replacement, verify the airflow direction arrow on the filter frame aligns with the housing airflow marking.