A Dyson is promised to keep on sucking at almost full power even as its dirt bin gets full, but few users realize there are also hidden filters that need to be periodically cleaned to keep the vacuum running at full strength. For a company that prides itself on vacuums that never lose suction, that was a big problem. So to ensure that users won't ever forget to clean those filters, Dyson simply engineered a better vacuum design that eliminates them altogether.
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