I was also asking myself the same. I think it's a vacuum especially designed to handle pet hair, they do exist. But I've also seen extensions to directly vacuum

I was also asking myself the same. I think it's a vacuum especially designed to handle pet hair, they do exist. But I've also seen extensions to directly vacuum pets, so maybe they do? I am really confused about people vacuuming their pets. I don't know if the vacuums to handle pet hair also come with exertions to directly vacuum the pet and if that's common.