Nispira CXF36 Activated Carbon Pre Filter Replacement Compatible with Lasko Tower Fan OST100 Ascend, RST200 Apex, Pack of 4 Sheet

["Compatible with Lasko OST100 Ascend Tower Fan and RST200 Apex Tower Fan. Precision-cut design ensures a proper fit and stable placement during use.","Made with high-quality activated carbon to help reduce common household odors and support a fresher indoor environment.","Works as a pre filter layer to help reduce buildup on internal components and support overall system performance.","Slim profile allows for smooth airflow while maintaining consistent operation without adding restriction.","Each filter measures approximately 16 x 4.5 x 0.1 inches, designed to match compatible units for easy installation.","Includes 4 replacement pre filters, providing a convenient solution for regular maintenance and extended use."]