Compatibility: Our AP-T45 AP-T40FL HEPA Replacement Filter is designed for Purifier models AP-T45, T45WT, T40, T40WT, T40W, and TAR. 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 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. Note: Slight color variations due to lighting or display differences may occur. These do not affect functionality. Color: As shown in photo Material: Plastic Package Contents: 1 x AP-T45 Filter Note: Light reflection and different displays may cause the color of the item in the picture to appear slightly different from the actual product. Measurement may vary by +/- 1-3 cm.