6 days ago · The Kirby Company (stylized as KIRBY) is a manufacturer of vacuum cleaners and home cleaning accessories, based in Cleveland, Ohio, United States. It is a division of the Scott Fetzer Company (also known as Scott & Fetzer) which in turn is part of Berkshire Hathaway. Dealers are located in over 50 countries throughout the world.
4 days ago · Kirby Company, manufacturer of Kirby vacuum cleaners; Kirby's Pig Stand, the first drive-in restaurant in the United States; Entertainment. Kirby, a video game series Kirby (character), the titular character; the title character of Rip Kirby, an American comic strip; the Kirby family in the play You Can't Take It with You
Jan 11, 2021 · The Hoover Company is a vacuum cleaner company founded in Ohio in the US. It also established a major base in the United Kingdom; and, mostly in the 20th century, it dominated the electric vacuum cleaner industry, to the point where the Hoover brand name became synonymous with vacuum cleaners and vacuuming in the United Kingdom and Ireland.
- June 2, 1908; 112 years ago, 111, U.v.
- Vacuum cleaners, deep cleaners, hard-floor cleaners, stick vacs, laundry products
- Floor care
- Charlotte, NC, US
Jan 11, 2021 · Low vacuum, also called rough vacuum or coarse vacuum, is vacuum that can be achieved or measured with rudimentary equipment such as a vacuum cleaner and a liquid column manometer. Medium vacuum is vacuum that can be achieved with a single pump, but the pressure is too low to measure with a liquid or mechanical manometer.
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2 days ago · Kirby have been manufacturing vacuum cleaners in Cleveland, Ohio since the early 1900’s. They expanded their manufacturing facilities with the opening of a second plant in Andrews, Texas in 1972. Kirby produce all their home care vacuum systems from these two American factories.
2 days ago · The origin of the vacuum cleaner - H. Cecil Booth, Transactions of the Newcomen Society, 1934–1935, Volume 15. "Mr Booth's answer wasn't so dusty", Chichester Today; Vacuum Cleaners - Energy Use - MTP; 外部連結. Eight myths of vacuuming 页面存档备份，存于互联网档案馆
3 days ago · The vacuum cleaner is unique and pretty well made, but it’s not worth $3500. And if you think you can simply do the program and get it free, you better be ready to just buy the damn thing.
4 days ago · Most vacuum cleaner specifications confirm a noise rating in decibels (dB). This is what you need to look for to find the quietest vacuum cleaner. For these quiet vacuum cleaner reviews we've compared the market for you to find the most silent vacuum models in 2020.
- The United States and European Hepa Rating Standards
- True Hepa vs. Hepa-Like
- Most Penetrating Particle Size (MPPs) and Why It Matters
In the United States, the Department of Energy (DOE) now uses the standard known as the Institute of Environmental Sciences and Technology (IEST)-RP standard to validate its HEPA filter testing program. Filter manufacturers who want to claim that their filter is a HEPA filter must go through independent laboratory testing following the this independent method of testing. The European Union uses a different standard called the EN 1822:2009, or European Norm. The US standard test starts off with an arbitrary particle size, which is 0.3 µm for most filters. The European test, however, uses something called the Most Penetrating Particle Size (MPPS) to determine the particle size to test. The US standard also requires that a minimum of 99.97% of those pollutants be filtered, while the European standard requires a minimum filtration of 99.95% for the most widely known type of HEPA filter. Manufacturers often use the term “H13 HEPA filter” to denote a filter that meets the above criteria u...
I’ve already stated it multiple times – A real HEPA filter must at minimum be able to filter out at least 99.97% of particles 0.3 µm or larger in a laboratory setting. There are, however, a lot of filters that are marketed as HEPA-like, HEPA-style, or similar. Most of those filters in reality can only filter out 99.0% of particles 2 µm in size or larger. The reason why their manufacturers can use words like HEPA-like or HEPA-style on the packaging is because these filters are made from the same media used to make HEPA filters, but the filters themselves don’t end up being manufactured the same way. These filters don’t undergo HEPA testing since they’d fail the test. The difference between 99.97% and 99.9% may not sound like a lot, but it is when you consider the billions of particles floating in the air and constantly being cycled out. The difference in size between 0.3 and 2 µm doesn’t sound like it’s a lot, either. But, it becomes significant when you consider that even HEPA filte...
Circling back to Europe again, the Most Penetrating Particle Size (MPPS) is used instead to set HEPA filter standards. Here, the MERV rating system is less known. It makes sense considering that the MERV rating system doesn’t even go high enough to properly rate a HEPA filter. But what is the MPPS then? When it comes to air filtration, the MPPS could be considered as a gray zone, or weakest point. It’s the exact particle size where a filter struggles to neither use diffusion nor inception to successfully trap a pollutant. The MPPS that’s usually used by European standards is in the range between 0.12 to 0.20 µm when it comes to HEPA air filtration. For this reason, the HEPA filtration testing requirement has been set right above this range in the United States, at 0.3 µm. It’s just the right size to still be a potent air filter and cover as many of the pollutant sizes as possible, yet close enough to the MPPS to provide a challenge for manufacturers to improve upon. Now, this small...
Different parts of the world have their own standards of testing for HEPA filtration, which can cause some confusion. Using terms like HEPA-like and HEPA-style can also be confusing for consumers. So while we wait to see if the world will adopt a universal rating standard (known as the ISO 29463), just know that if a filter is being marketed as being able to remove at least 99.97% of pollutants 0.3 µm in size or larger, it’s a real HEPA filter. Combine it with a heavy activated carbon filter and it should be able to trap the majority of indoor pollutants in your home.