Spangler, Hoover, and Commercialization

Did you know over 90% of US households own a vacuum cleaner? These handy-dandy descendents of the carpet sweeper revolutionized the cleaning game... but where did they come from? As Ben, Noel and Max discover in today's episode, your humble vacuum is the result of centuries' worth of wild ideas -- and more than a few crazily ambitious inventors, as well.

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