Specifies what type of vacuum cleaner it is.
Cylinder: Are lightweight and versatile. They are particularly good for cleaning under furniture, curtains and cobwebs, but can be tiring when used on big expanses of deep-pile carpet.
Upright: Upright vacuum cleaners are by far the most popular type of vacuum cleaner in the United States. Uprights are excellent for homes that feature significant wall-to-wall plush carpeting. In recent years, many features have been added to uprights that make them better at cleaning hard floor surfaces as well as above-floor cleaning (i.e. drapes, stairs).
Uprights are available with a variety of tool configurations -from no tools to a complete set of on-board tools. On-board tools will make an upright heavier but they eliminate the need to own a separate vacuum for above floor cleaning.
Some uprights have a feature which turns off the brushroll. This is beneficial when using attachments or tools for above-floor cleaning. This feature also allows the upright to clean hardwood floors. With the brushroll turned off, dirt and debris are not scattered.
An upright is easier to use than a canister vacuum, but is not as light. They are usally also easy to store. Most uprights offer excellent filtration (electrostatic or HEPA type).