Design and Fabrication of a Low-cost Air Purifier

Abstract

Air pollution is a major environmental health concern, with indoor air pollution posing significant risks, particularly in densely populated urban areas. According to the World Health Organization (WHO), 9 out of 10 people worldwide breathe polluted air, contributing to an estimated 7 million premature deaths annually. Prolonged exposure to indoor air pollutants, such as Particulate Matter (PM2.5), Volatile Organic Compounds (VOCs), and allergens, can exacerbate respiratory diseases, including asthma and Chronic Obstructive Pulmonary Disease (COPD). While air purifiers have proven effective in improving indoor air quality, their high cost and energy consumption often make them inaccessible to low-income households. This project presents the design and development of a low-cost air purifier to address the affordability and accessibility challenges associated with commercial air purification systems. The proposed purifier utilizes a custom-designed filter and a low-power fan to effectively remove airborne pollutants, including fine particulate matter and allergens. The device is designed to be affordable, energy-efficient (<20W), and quiet (<40 dB), ensuring minimal operational costs while maintaining effective air purification performance. The compact and user-friendly design makes it suitable for residential use, particularly in economically disadvantaged communities where indoor air pollution is a pressing issue. By providing an accessible and cost-effective solution, this project aims to bridge the gap in clean air accessibility, reduce health risks associated with poor indoor air quality, and promote overall well-being. Future research can focus on enhancing filtration efficiency, integrating sustainable and biodegradable filter materials, and incorporating smart monitoring systems to optimize performance and user experience.