mouthbreather.net

What It Is

Mouth Breathing Notifier is a web-based mouth-breathing reminder tool. After the user grants camera permission, the app uses the webcam and MediaPipe to detect whether the mouth is open, then reminds the user to close their mouth and switch to nasal breathing if it remains open beyond a configured threshold. It is better understood as a habit-support tool rather than a health diagnostic product, and the page clearly states that it does not provide medical advice.

Core Features and User Experience

Based on the main content, the tool’s AI capability focuses on local face/mouth landmark detection. It lets users adjust the “mouth-open threshold” and “seconds open limit,” while showing real-time detection status, mouth-open ratio, and a timer. Its main advantage is a very simple workflow: open the page, allow camera access, set the thresholds, and enable notifications. It supports recent versions of Chrome, Edge, Firefox, and Safari, and can also be installed on a device. The limitations are that accuracy can be heavily affected by lighting, camera angle, and distance. Background browser tabs are throttled, so the tool can only perform lower-frequency periodic checks there, making it unsuitable for serious use cases that require stable, continuous monitoring.

Pricing, Privacy, and Integrations

The page does not disclose subscription, one-time purchase, or enterprise pricing, so it appears to be mainly a free web tool at present. However, the content mentions that cookies are used for advertising and measurement, and that Google AdSense may be integrated. From a privacy perspective, the most important highlight is that “all processing is done locally in the browser, and video never leaves the device,” which is especially important for camera-based tools. Users still need to grant camera permission, and should pay attention to advertising and measurement cookie settings. The page does not mention any API, SDK, or integrations with third-party business systems.

Pros, Cons, and Best-Fit Users

Its strengths are that it is lightweight, requires no installation or can be installed as a web app, processes data locally, and offers adjustable thresholds. It is suitable for correcting unconscious mouth opening during work or study, or as a reminder tool for nasal-breathing practice. Its downsides are that it has a single-purpose feature set, no proof of medical-grade accuracy, and cannot determine the cause of mouth breathing, such as nasal congestion, adenoids, a deviated septum, or sleep apnea. If there are issues such as long-term snoring, poor sleep, or abnormal facial development in children, users should consult a doctor, dentist, orthodontist, or ENT specialist.

Access in China and Alternatives

The main content does not mention access status in mainland China, so actual availability needs to be tested independently; payment information is also not disclosed. If access is unstable, alternatives include local webcam-based posture/reminder software, breathing-training apps, sleep-monitoring devices, or—under professional guidance—nasal strips, orofacial myofunctional therapy, and similar options. Overall, it is a lightweight AI utility with clear privacy boundaries, suitable for self-reminders but not as a basis for medical judgment.