I read the reviews before ordering and they told me the filter was too big. That's right. I had to slide the filter in place. Parts of it get crushed, and when the vacuum kicks in, the pressure pushes the door aside. Otherwise I assume it works. I just hope that because the door is open the filter catches most of the lint, dirt, dander, etc. Despite the reviews, the ad says it's the right filter for my Bissel model.