To determine your correct mouthpiece size, please download our new app here:
👉 Feno App – iOS
Once downloaded, follow these steps:
Log in using the email or phone number you used when placing your order.
Locate the FitKit Scan button in the app.
Follow the on-screen instructions to complete your scan — you only need to do this once.
Note: if you are using an Android device, reach out to our team to generate a unique webpage link to complete your scan.
This scan helps us determine the right size mouthpiece for you, ensuring a secure and comfortable fit that works effectively with your Smartbrush.
If you have any questions or need assistance, our support team is here to help at support@feno.co.