Quick and easy to replace, recommend to change the HEPA filter every 3 month
Please notice that this for Kenmore EF-1 86889 filter is similar for Kenmore EF-2 86880 filter, our EF-1 86889 filter size is 5.9 inches long by 3.94 wide by 0.59 inches thick. please check your machine number or part number before purchase!