The Shark
SharkFlex DuoClean Ultra-Light Corded HV391 is part of the
Vacuum Cleaners test program at
Consumer Reports. In our lab tests, Stick Vacuum (Corded)
models like the SharkFlex DuoClean Ultra-Light Corded HV391 are rated on multiple criteria, such as those
listed below.
Carpet:
A high score means the vacuum effectively removes dirt from medium-pile carpet. A top-scoring model picks up everything from fine particles such as sand to larger items like Cheerios.
Bare floors:
A high score means the vacuum effectively removes dirt from bare floors such as hardwood. A top-scoring model picks up everything from fine particles like sand to larger items like cereal.
Edges:
A high score means the vacuum effectively reaches and cleans into corners and edges. A top-scoring model has little problem cleaning edges such as the areas where the walls and the floor meet.
