Eco-Friendly and Solar Powered Air Purifier

Overview

The goal of this project is to create an eco-friendly and economical air purifier that effectively purifies air. It is vital to build an accessible air purifier as air pollution is one of the biggest contributors of health issues in the world. Four objectives were evaluated in this study- how to build an air purifier in three different shapes, find the best eco-friendly material, select the best shape, and assemble the final air purifier. Three eco-friendly materials were tested as filtration medium, such as coconut fibers, activated charcoal, and moss. The most effective filtration material in purifying the air was found to be activated charcoal. Activated charcoal effectively reduced the particulate matter and volatile organic compounds (VOC) levels in the least amount of time (average duration- 22 min) versus 1 hr for other eco-friendly materials. Activated charcoal was then tested on three different shapes of the air purifier which were square, rectangular, and cylindrical. Cylindrical design was found to be the most efficient as it reduced the VOC component of the air quality the most (in addition to different components of air quality such as Air Quality Index (AQI), Particulate Matter (PM), Carbon monoxide (CO)) with only one fan and half the amount of activated charcoal as compared to other designs. Activated charcoal and cylindrical shape were selected to assemble the final air purifier which was the most effective combination in purifying the air.

Competition history

• CSEF 2026 Environmental Engineering (Junior Division) · Entry J-11-41

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