Upright Vacuum Cleaners
Upright vacuum cleaners, because of their combined brushing and vacuuming motion, tend to be much quicker and more efficient than tub type vacuums.
They are more convenient to use on carpeted areas with none of the hassle of hoses and wands or the inconvenience of trailing the machine around, getting caught on doors and furniture etc.
There is also not so much bending down thus reducing operator fatigue and because of the brushing action they reduce compaction, re-invigorating the carpet pile with every use.