The vacuum cleaner has come a long way since an Ohio janitor married a soapbox to an electric fan motor, brush and pillow case. Today's cleaners can look sleek and bullet-shaped, sturdy and professional or robotic. They compete for a buyer's attention by offering such extras as variable-speed control, self- propulsion, optional rug shampooers, and portable power brushes.
In recent tests, Consumer Reports judged the cleaning performance and convenience of 38 upright, canister and compact canister vacuum cleaners.
The key to a vacuum cleaner's performance, of course, is how well it can deep clean carpets. A given machine may do that by brushing the carpet and …
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