From iRobot to HEXA: Are Robots the Next Home Appliance?

The other day, I was in one of my student's homes. Noticing the lack of dust--really, the house is always clean--I joked to her, "Is it you or your parents vacuuming these floors so well?" She told me that they actually have a central vacuum system installed in the house. As someone who lives in a rather modest townhouse, she might as well have been speaking Latvian. Thus, as I usually do, I began the rabbit hole internet search about central vacuum systems.