This document outlines an IoT air quality and heart rate monitoring project developed by Team D. It includes an introduction to the project goals and technologies, as well as sections on system architecture, development process, and demonstrations of the sensor, web, and mobile applications. The system architecture section describes the device-app, server-app, server-database, and server-web protocols and includes database schema and sequence diagrams. It also outlines the overall data flow between sensors, server, database, and apps/web.