Thanks for leaving your review, Robert, and we're sorry you feel this way. Oral-B iO2 Starter Kits come with 1 Oral-B iO Gentle Care brush head and 1 Oral-B iO Ultimate Clean brush head. The standard iO2 toothbrush comes with 1 Oral-B iO Gentle Care brush head. All of our Oral-B iO Replacement Brush Heads (Ultimate Clean, Gentle Care, Ultimate White and Targeted Clean) are compatible with all Oral-B iO handles, including the iO2. There isn't a lighted or visual timer on the iO 2. Instead, it has a vibrating 2-minute timer, breaking the brushing session into 30-second intervals for each quadrant. Feel free to call us at (800) 566-7252 if you'd like any additional assistance.

We never want you to feel disappointed when using your iO2, Chandler. Our products undergo rigorous quality checks to reach you in perfect condition, allowing you to get the ultimate teeth-cleaning experience. The iO series 2 is designed with openings on the brush heads to allow water to flush through the brush head tube and let air inside. This venting ensures the brush head dries sufficiently after use and reduces moisture inside the tube. What you have described can occur if the brush is stored in a location exposed to mold and bacteria, and the plastic comes into contact with ingredients of a corrosive nature. Certain ingredients used in those types of products can make the plastic porous, allowing dirt and moisture to find places to settle. To avoid this, it's important to always rinse your brush head thoroughly after each use to prevent residue from building up and blocking the openings. Your satisfaction means everything to us, and we'd like to learn more about your experience with your iO2. When you have time, please give us a call at 1-800-566-7252, 9 am-6 pm EST, Monday-Friday.

We're so sorry this happened with two different sets of our Oral-B iO Series toothbrushes that you purchased, Tammy. Our products and packages go through many quality checks and we try our very best to make sure that each one reaches you in perfect condition. We can understand your frustration, and appreciate your letting us know this happened. We stand behind our products, and would like to gather some details from you. Please give our Oral-B Team a call at 1-800-566-7252 from 9AM -- 6PM EST Monday–Friday.

We understand the importance of knowing that your toothbrush is sanitary, and we are disappointed to hear that you have been experiencing mold with your Oral-B iO Toothbrush. When designing our products, we dedicate much time to consumer testing and product research to ensure that we are bringing you exceptional products for your oral care, and this is not something we would expect. It sounds like you have been doing a wonderful job at cleaning your toothbrush the recommended way, by thoroughly rinsing and pulling apart the brush head and handle, and allowing them to air dry. It is important to note that while it is ok to wash them with a mild detergent, certain cleaning solutions may cause the plastic to become porous and allow bacterial growth. We would love a chance to learn more about your experience so we are better able to assist you, as well as gather some additional information for our Quality Team, and encourage you to give us a call at (800) 566-7252.