yes la... maid always like to 試低線... my maid also did 負離子直髪 and started not 札起... but only when I'm not home (but my 99 was at my place) ! I saw it via the cam.. now my maid's hair 勁長... 札起 still will drop to the front lor............................ seems not so 衛生 (esp. she doesn't wash her hair everyday.. )