Editing Vacuum cleaner (section)

===Specifications===
[[File:ISS-24 Tracy Caldwell Dyson during housekeeping.jpg|thumb|Astronaut [[Tracy Caldwell Dyson]] vacuums equipment on the [[International Space Station]].]]
[[File:2043963769 cf57dac8d7 b train aspirateur.jpg|thumb|Train-mounted vacuum system for track cleaning (France)]]
The performance of a vacuum cleaner can be measured by several parameters:
* Airflow, in [[litre]]s per [[second]] [l/s] or [[cubic foot|cubic feet]] per minute (CFM or ft<sup>3</sup>/min)
* Air speed, in metres per second [m/s] or miles per hour [mph]
* Suction, vacuum, or water lift, in [[pascal (unit)|pascals]] [Pa] or inches of water

Other specifications of a vacuum cleaner are:
* Weight, in kilograms [kg] or pounds [lb]
* Noise, in [[decibel]]s &#91;[[Decibel#Acoustics 2|dB]]&#93;<!-- misnomer dBA !? -->
* Power cord length and hose length (as applicable)

==== Suction (Pa) ====
The suction is the maximum pressure difference that the pump can create. For example, a typical domestic model has a suction of about negative 20&nbsp;kPa.{{citation needed|date=December 2017}} This means that it can lower the pressure inside the hose from normal atmospheric pressure (about 100&nbsp;kPa) by 20&nbsp;kPa. The higher the suction rating, the more powerful the cleaner. One inch of water is equivalent to about 249&nbsp;Pa; hence, the typical suction is {{convert|80|in|mm}} of water.

====Input power (W)====
The power consumption of a vacuum cleaner, in [[watt]]s, is often the only figure stated.{{citation needed|date=April 2020}} Many North American vacuum manufacturers give the current only in [[ampere]]s (e.g. "6&nbsp;amps"),{{citation needed|date=April 2020}} and the consumer is left to [[Volt-ampere|multiply that by the line voltage of 120 volts]] to get the approximate power ratings in watts. The rated input power does not indicate the effectiveness of the cleaner, only how much electricity it consumes.

After August 2014, due to EU rules, manufacture of vacuum cleaners with a power consumption greater than 1600 watts were banned within the EU, and from 2017 no vacuum cleaner with a wattage greater than 900 watts was permitted.<ref>{{cite news |title=Ten days left to vacuum up a powerful cleaner |url=https://www.bbc.com/news/business-28878432 |access-date=8 September 2020 |work=BBC News |date=21 August 2014}}</ref><ref>{{cite news |last1=Harrabin |first1=Roger |title=Sales of inefficient vacuum cleaners banned |url=https://www.bbc.com/news/business-41119355 |access-date=8 September 2020 |work=BBC News |date=1 September 2017}}</ref>

====Output power (AW)====
{{Main|Airwatt}}
The amount of input power that is converted into airflow at the end of the cleaning hose is sometimes stated, and is measured in ''airwatts'': the measurement units are simply watts. The word "air" is used to clarify that this is output power, not input electrical power.

The airwatt is derived from [[English unit]]s. [[ASTM International]] defines the airwatt as 0.117354&nbsp;× F&nbsp;× S, where F is the rate of air flow in ft<sup>3</sup>/min and S is the [[pressure]] in [[inches of water]]. This makes one airwatt equal to 0.9983 watts.<ref>{{cite web|url= http://www.unc.edu/~rowlett/units/dictA.html|title= Units: A|access-date= 27 March 2008|author= Rowlett, Russ|date= 21 March 2001|work= How Many? A Dictionary of Units of Measurement|publisher= University of North Carolina at Chapel Hill|archive-date= 20 December 2008|archive-url= https://web.archive.org/web/20081220111445/http://www.unc.edu/~rowlett/units/dictA.html|url-status= dead}}</ref>

====Peak horsepower====
The peak horsepower of a vacuum cleaner is often measured by removal of any cooling fans and calculating power based on the motor's power plus the rotational inertial energy stored the motor armature and centrifugal blower. A peak horsepower rating is often an impractical figure and is only valid for a very short period. Continuous power is typically far lower.<ref>{{cite web |url= https://www.truthinadvertising.org/the-horsepower-of-shop-vac-vacuums/ |title= The Horsepower of Shop-Vac Vacuums |date= July 2019 |publisher= [[Truth in Advertising (organization)]] |accessdate= 6 October 2021}}</ref><ref>{{cite web |url= https://www.intervacdesign.com/f4/The-Truth-About-Vacuum-Horsepower.htm |title= The Truth About Horsepower |work= Intervac Design |accessdate= 5 October 2021}}</ref>
{{wide image|Automotive vacuums in Bayonet Point, Florida.jpg|500px|alt=Automotive vacuums in Bayonet Point, Florida. Although the prominent sign says "free", a paid car wash is required first.|Automotive vacuums in [[Bayonet Point, Florida]]. Although the prominent sign says "free", a paid car wash is required first.}}