Compatibility: Our APT45 APT40FL HEPA Replacement Filter is for Purifier,APT45/T45WT/T40/T40WT/T40W TAR HEPA Filter. Rest that this filter fit seamlessly into your purifier, ensuring optimal performanceH13 True HEPA Filter: The APT45 APT40FL HEPA Replacement Filter features advanced H13 True HEPA filtration technology. Effectively captures up to particles as small as 0.3 microns, including dust, pet dander, smoke, cooking smell and otherLonglasting and Costeffective: Providing you with a costeffective solution for maintaining in your Purifier. With its construction, this filter is built to last, delivering longterm value and saving you money on frequent replacementsIt is recommended to replace your filter every 6 to 12 months to maintain optimal performance.Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!Colour:Photo ColorMaterial:plasticPackage Contents:1 x APT45 FilterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/ 13cm.