As my tests showed, this primary vacuum filter does an excellent job of trapping dust and allergens from my floors and carpets. The filter is very easy to install and clean, and it fits snugly into my vacuum. It also helps to improve the overall air quality in my home. However, the only downside is that the filter may need to be replaced frequently, depending on how often I vacuum. Overall, this is a great investment for anyone who wants to keep their home clean and healthy.