A Smart mask for wireless, real-time monitoring of CO2 and humidity

Abstract

Face masks are widely used for health protection in both public and professional settings. However, prolonged usage of masks leads to the buildup of carbon dioxide (CO₂), heat, and humidity inside the mask, which may cause discomfort and adverse physiological effects. This paper introduces an embedded respiration monitoring device that can be attached to a face mask. The objectives are to measure CO₂, temperature, humidity in real time, alert users when unsafe levels are detected and enable smartphone connectivity for continuous monitoring and control.