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Does the Oral-B iO Series 9 have issues with mold or odor?

Published: July 15th, 2024
2 min read
Oral-B iO Series 9 Electric Toothbrush with 3 Replacement Brush Heads, Black Onyx
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Hey there! So, about the Oral-B iO Series 9 and whether it has issues with mold or odor—let’s break it down. According to our research, these problems can definitely pop up if the brush isn't maintained properly, which honestly is the case with most electric toothbrushes.

Mold and Odor Concerns

Even though the Oral-B iO Series 9 is designed to be really hygienic, some folks have reported mold and bad smells over time. But don't worry—it seems like it's mostly related to how the brush is taken care of.

Keeping Things Clean

Here are a few easy things you can do to avoid these issues:

  • Rinse Well: After you use it, make sure to rinse off the brush head completely to get rid of any toothpaste leftover.

  • Dry It Out: Let the brush head dry totally before putting it away. Keeping it upright in a well-ventilated spot is a smart move.

  • Swap Out the Brush Head: The manufacturer suggests changing the brush head every 3 months. This helps keep everything clean and fresh.

  • Don’t Forget the Handle: Every now and then, give the handle and where the brush head connects a good clean to avoid any gunk build-up.

What Others Have Noticed

From what we found, people who stick to a good cleaning routine usually don’t have any mold or odor issues. On the flip side, if those steps are skipped, then yes, that's when problems are more likely to show up.

Final Thoughts

In a nutshell, the Oral-B iO Series 9 is pretty awesome with its AI-powered 3D teeth tracking, pressure sensor, and personalized coaching app. Just keep up with the cleaning, and you should be good to go.

It's a solid brush, but like anything, a bit of maintenance helps a lot. 😊

Lowest at Amazon
$219.94 at Amazon
How we researched this

Where this comes from: This answer is based on ShopSavvy's product database, real-time pricing from 6 retailers, and a look at hundreds of user reviews to give you a well-rounded picture.

Where to Buy

Prices last updated: August 25th 2026 3:32 pm

Considering the Oral-B iO Series 9 Toothbrush?

Here's our "TLDR" Review

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More Answers

If you're still curious about the Oral-B iO Series 9 Toothbrush, here are some other answers you might find interesting:

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