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2. List of cleaning companies - Wikipedia

   en.wikipedia.org/wiki/List_of_cleaning_companies

   ISS A/S – a facility services company founded in Copenhagen, Denmark in 1901. Jani-King – an American chain and franchise of cleaning services. [4] Merry Maids – a residential cleaning service franchisor founded in 1979, acquired by ServiceMaster in 1988, with franchises in the United States, Canada and the United Kingdom. [5]

3. Commercial cleaning - Wikipedia

   en.wikipedia.org/wiki/Commercial_cleaning

   This is an accepted version of this page This is the latest accepted revision, reviewed on 17 January 2025. Cleaning service provided for commercial buildings and establishments "Cleaning company" redirects here. For the Australian documentary film also known as "The Cleaning Company", see Clean (2022 film). This article needs additional citations for verification. Please help improve this ...

4. Airwatt - Wikipedia

   en.wikipedia.org/wiki/Airwatt

   [1] [2] This measurement reflects the energy per unit time of the air flowing through the vacuum's opening, which correlates to the electrical energy (wattage) supplied through the power cable. [ 3 ] The airwatt is a valuable measurement of vacuum cleaner motor efficiency because it represents the power carried by the fluid flow (in the case of ...

5. Duct (flow) - Wikipedia

   en.wikipedia.org/wiki/Duct_(flow)

   Ducts for air pollution control in a 17000 standard cubic feet per minute regenerative thermal oxidizer (RTO). A round galvanized steel duct connecting to a typical diffuser Fire-resistance rated mechanical shaft with HVAC sheet metal ducting and copper piping, as well as "HOW" (Head-Of-Wall) joint between top of concrete block wall and underside of concrete slab, firestopped with ceramic ...

6. Arizona - Wikipedia

   en.wikipedia.org/wiki/Arizona

   This is an accepted version of this page This is the latest accepted revision, reviewed on 29 January 2025. U.S. state This article is about the U.S. state. For other uses, see Arizona (disambiguation). State in the United States Arizona State Flag Seal Nicknames: The Grand Canyon State; The Copper State; The Valentine State Motto: Ditat Deus ('God enriches') Anthem: "The Arizona March Song ...

7. Oxygen - Wikipedia

   en.wikipedia.org/wiki/Oxygen

   Breathing air is scrubbed of carbon dioxide by chemical extraction and oxygen is replaced to maintain a constant partial pressure. Ambient pressure divers breathe air or gas mixtures with an oxygen fraction suited to the operating depth. Pure or nearly pure O

8. Kursk submarine disaster - Wikipedia

   en.wikipedia.org/wiki/Kursk_submarine_disaster

   Kursk was a Project 949A Antey (Oscar II-class) submarine, twice the length of a 747 jumbo jet, and one of the largest submarines in the Russian Navy.. On the morning of 12 August 2000, Kursk was in the Barents Sea, participating in the "Summer-X" exercise, the first large-scale naval exercise planned by the Russian Navy in more than a decade, and also its first since the dissolution of the ...

9. List of Saturday Night Live commercial parodies - Wikipedia

   en.wikipedia.org/wiki/List_of_Saturday_Night...

   The first two, from 1995, feature vintage film of founder Arthur Grayson dictating his company's "basic principles," including keeping a list of clients in a safe, secure place; projecting an air of listening to clients (even if they're not paying attention to them); and investing only in white-owned business ("Not all of Arthur Grayson's ...