The ReFa CLEAR Brush Head should be replaced at least once every six months for hygienic purposes. It should also be replaced if:

• Your skin is irritated during use, or the feel of the bristles has changed.
• The brush head becomes deformed or damaged.

To extend the life of the brush head, perform the following steps after every use. With proper care, the brush head should only need to be replaced once every six months.

1. Wash all the foam completely off of the body and the brush head with cold or lukewarm water.
2. Wring out the brush head by hand to get rid of as much excess water as possible.
3. Dry the brush head and the body with a towel.
4. Stand the body on its recharging station in a well-ventilated area with plenty of light until completely dry, and then store it.

Never use at the same time as the following kinds of medical electronic devices. Doing so may cause an accident or the medical device to malfunction and result in significant bodily harm.

• Implanted medical devices, such as a pacemaker.
• Medical electronic equipment used to sustain life, such as heart-lung machines.
• Wearable medical electronic equipment, such as an EKG.

This product should not be used by:

• People with metal allergies
• People with sensory abnormalities of the skin
• People with infected or inflamed skin
• People with a bleeding disorder (such as hemophilia)
• People in poor health
• People with physical disabilities
• People who have been drinking alcohol
• People who are extremely fatigued