Usage Tips: Compatibility: Our AP-T45 AP-T40FL HEPA Replacement Filter is designed for use with Purifier models AP-T45, T45WT, T40, T40WT, T40W, and TAR HEPA Filter. This filter fits seamlessly into your purifier, ensuring optimal performance. H13 True HEPA Filter: The AP-T45 AP-T40FL HEPA Replacement Filter features advanced H13 True HEPA filtration technology. It effectively captures particles as small as 0.3 microns, including dust, pet dander, smoke, cooking odors, and other airborne pollutants. Long-lasting and Cost-effective: This filter provides a cost-effective solution for maintaining your air purifier. Built with durable materials, it is designed to last, offering long-term value and reducing the need for frequent replacements. It is recommended to replace the filter every 6 to 12 months to maintain optimal performance. Color: As shown in photo Material: Plastic Package Contents: 1 x AP-T45 Filter Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement may vary by +/- 1-3 cm.