Magnetic Vitals Monitor for Face Masks

Beyond the Wrist: Health Tracking Moves to Face Masks

The year 2022 may witness a shift in consumer health tracking, extending beyond wearable devices like wristbands. The increasing popularity of Oura rings and the introduction of ring-based fitness trackers at CES demonstrate this trend.

Following Google’s integration of vital and sleep tracking into the Nest Home, Sengled is now incorporating similar functionality into smart lightbulbs.

Exploring New Monitoring Locations

This raises the question: why not utilize face masks for health monitoring? Health-focused face coverings are already commonplace in several nations, notably China, and have become ubiquitous due to the ongoing pandemic.

While the long-term adoption of masks in the U.S. post-COVID-19 remains uncertain, their continued presence in daily life appears increasingly probable.

Introducing FaceBit: The "FitBit for the Face"

The face provides a stable location for monitoring specific vitals, and the widespread use of masks offers a consistent point for data collection.

Researchers at Northwestern University are developing FaceBit, a device designed to attach magnetically to N95, surgical, or cloth masks.

This innovative device is capable of monitoring respiratory rate, heart rate, and the duration of mask usage.

Power and Functionality

“Our goal was to create an intelligent face mask for healthcare professionals that doesn’t require frequent charging during their shifts,” explained Josiah Hester, the team leader.

The system utilizes energy harvesting techniques to supplement the battery, potentially allowing for weeks of use without recharging or battery replacement.

Detailed in a recent research paper, FaceBit can also assess mask fit. An alert is sent via a connected app if the mask becomes loose or dislodged.

Future Developments and Open Source Availability

Currently, the device’s battery lasts approximately 11 days on a single charge. The team is actively working towards a battery-free version, powered by thermal energy and kinetic energy.

Further clinical trials are necessary before the product can be widely released. However, the project is being offered as an open source resource for interested developers and researchers.