Very lite easy to maneuver covers all angels when stuck it will not tell u the problem i bought 5 pcs untill i knew the unit well it took me lots of experience until i learned that every little paper could stop the machine from functioning you have to open and clear the flow of air waves but it took a long time also some time you work the unit without filter that kills the unit but why wouldnt it stop working without the filter once the unit is broke its to late