Philips Sonicare UV Brush Head Sanitizer HX7990 - Manual (Page 15)

Problem Solution
Make sure you use the correct brush head
holder (see chapter ‘General description’).
Make sure the bristles point towards the UV
light bulb.
The bristles of my
brush head change
color.
Exposure to UV light may cause bristles to
slightly change color over time.
*Flexisoft is a registered trademark of Braun
Aktiengesellschaft Joint Stock Company Fed Rep
Germany.
**Oral-B and FlossAction are registered trademarks
of Gillette Canada Company, dba Oral-B
Laboratories Corporation Canada.
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