The ET-2 Power Head effectively and aggressively cleans carpeting and gently cleans bare floors when turned off. This amazing powerhead has a great pull to it and is very easy to push. If you accidentally suck up a blanket, shoelace or obstruct the brushroll in any way; the power head will turn off to prevent belt breakage thanks to the built-in electronic overload. That means no more belt changes or burnt out power head motors. The aggressive bristles deep clean rugs and when turned off the power head effectively cleans bare floors with out scratching the surface, thanks to the rubber wheels.