“Does the Roomba 891 work well on stained concrete floors? Does it scratch the floor?”

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• It does not scratch wood surfaces, a softer material than concrete

  Answered by Pete 7 years ago

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• Sure, it will do fine on your concrete floor. However, it will do nothing for your stain. And no, it cannot scratch concrete either.

  Answered by Gcracker 7 years ago

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