The Model CR is a workbench which is modular and free-standing for use in a clean room. Because it is Class 100, it has a HEPA filter which is 99.99% efficient at .3 microns or larger, as well as a 1 inch, disposable, fiberglass pre-filter. Further, it offers variable speed control to provide an air velocity ranging from 45 to 140 feet per minute. Electrical specs: 120 volt, 15 amp, U.L. approved. The standard work surface height is 30″, but, of course, other dimensions and work surfaces are available. Just contact Midstates Marketing and let’s discuss the changes that would serve YOU best!