Thank you for taking the time to share your feedback with us, Linda. We’re sorry to hear the brush head for your Oral-B iO 2 lasted less than a month. We’ll share your message with our Quality Team. Please know that our brush heads undergo many quality checks to ensure you receive them in perfect condition. The brush heads for our power toothbrushes have an expected lifespan of three months, based on a brushing time of 2 minutes twice daily. If your brush head isn’t lasting for its expected lifespan, it could be caused by brushing too hard, as too much pressure makes the bristles wear faster. Rinsing a toothbrush under hot water or soaking it in a solution will also soften the bristles, causing them to wear out more quickly. Please call us at (800) 566-7252 so we can learn more about your iO brush head refills and help you get the most out of them.

Brady, we&#39;re very sorry you&#39;re experiencing this, as all our electric toothbrushes get quality-tested multiple times to ensure you receive a perfect device that&#39;s also 100% safe to use. What you&#39;re seeing is likely toothpaste buildup, since mold can only develop on something organic, not plastic or metal. We recommend following these steps to effectively clean your Oral-B brush:<br />1. After brushing, rinse the brush head and handle thoroughly under running water, with the handle switched on.<br />2. Switch the brush handle off, remove the brush head from the handle, and clean both parts separately under running water.<br />3. Wipe and thoroughly dry both the brush head and handle before placing the brush head back on the handle.<br />We hope these tips are helpful, and feel free to call us at (800) 566-7252 if you&#39;d like any more assistance!

Nicole, we&#39;re sorry to learn you&#39;re unhappy with your toothbrush, and want to help. WE know how important it is to easily keep your toothbrush clean, and there are a few simple steps to preventing any build up: <br />1. Remove the brush head from the handle.<br />2. Clean both parts separately under running water.<br />3. Wipe the head and the handle dry before placing the handle on the charger.<br /><br />So we can help further, please call us at (800) 566-7252.