Philips Sonicare ProtectiveClean 5100 (Sonic toothbrush)
EUR142,70

Philips Sonicare ProtectiveClean 5100

Sonic toothbrush


Question about ProtectiveClean 5100

What do the numbers behind the model names (Philips Sonicare ProtectiveClean 5100, 4500, 4300 and 6100) mean? I can't even find a specific reference to this on philips.ch. It's not about the sound frequency - at least there is no reference to this.

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The models differ in the number of tooth cleaning programmes and intensity levels.