8 ms·
ironically the special blue bristles in the philips heads that turn white when the brush head needs to be replaced is exactly what you want, I think?
by fire 3y ago
ironically the special blue bristles in the philips heads that turn white when the brush head needs to be replaced is exactly what you want, I think?
- gwbas1c 3y agoThat's not the same, because it's gradual, as opposed to a beep / notification. When things change gradually, I tend to ignore the change. To put it in a different context, I've had the fadeout brush heads for years, but I had to get in the habit of changing my brush head when I went in for a dental cleaning because otherwise, I'd just keep using it forever.