ApathyTree

It does not work well. The dramatically reduced airflow means the fan is working hard for basically nothing.

However, if you are gunna go through the trouble of making a cube anyway, you can make one out of thin strips of wood or laminated cardboard, and attach washable air filter material all around it, and you never have to rebuild it or replace the filters. Just wash it with a sprayer of some sort (hose, shower, sink) once every few months.

That trend is because a lot of them start life as “light novels” (similar to young adult novels, have a few scattered pictures and stuff), and those are intentionally titled so you have an idea of what you’ll be reading, because there are a freakin’ lot of them. It’s basically the synopsis blurb, just as part of the title.