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really very little, it has rubbers on the roller.
Sorry, there was a problem. Please try again later.I've been using this vacuum bot for about a month now, got two cats in my house; and I haven't seen any hair tangled in this vaccine bot so far. However, it is probably still better to clean the rotating stick under the vacuum once awhile to ensure that is functions at it's maximum efficiency ( It only take like 30s).
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