The electric eraser cleaner

My classroom has old fashioned black blackboards on three walls, and the chalk dust has been getting out of hand. A couple days ago I took two erasers to the bathroom and beat them against the sink for a while, sending up clouds of dust and choking on it, and the morning after I wiped the board with a wet cloth instead. Upon which a student gave out the inside information: C-dog*, there's a machine for cleaning those erasers!

I had never heard of such a thing, and was fully prepared for this to be a little joke on the part of the student (she is funny). But a colleague confirmed that there was indeed an eraser cleaner, and pointed out where it was located, in a tiny, tiny closet containing this machine on a shelf and nothing else. It's this powerful little vacuum cleaner with a rotating brush, and it sucks the chalk dust into a ballooning green bag as it works. And it makes some noise while it's on!

My erasers are very clean now. Here's a picture of the machine. Isn't it the neatest thing?

*No idea where that came from - again, she is a funny student.