This air cleaner still works great but it has some funny wiring right now that needs to get cleaned up. The unit is capable of running at three different speeds but is not presently wired for that. This tool is being sold as surplus on behalf of a local communal workshop named MakerSpace. There are many other items for sale, check them out. We're located at 4476 Markham Street and all items must be viewed there, generally in the evenings.