Installation was easy after finding a video on how to change the filter on my vacuum cleaner. To be honest, I didn't even know about other filters, so I knew which ones to buy. Luckily the photos matched up and matched my shark vacuum perfectly. Now my vacuum cleaner is quieter and picks up dust and dirt better. I like and dislike that it came in such a large set. Firstly, you only change the filter once in a while (I vacuum almost every day but I have a small living space) so I don't need THAT much, but then it's good to know I have them, now just don't lose them them, because next time they have to change.