Development of hybrid-powered organic air purifier/ Jerome B. Francisco, Jerome P. Quipot, Kyle Andrei J. Suello, Joshua James M. Terencio, and Carl R. Tinao .--

Bachelor's thesis

College of Industrial Technology .-- Bachelor of Engineering Technology major in Mechanical Technology: Technological University of the Philippines, 2023.

Includes bibliography:

Air pollution is a global problem that continuously worsens as time passes.
Unfortunately, it contributes significantly to various respiratory diseases and deaths
around the world. To address this, many studies have shown that air purifiers can
effectively improve air quality conditions. However, there is still a lack of research on
their cost- effectiveness and use of sustainable materials. Therefore, this project study
aimed to design, develop, test, and evaluate an air purifying system using both
conventional and solar energy sources and locally available organic filters such as
coconut husks and carbonized rice hull. The prototype was tested in a controlled room
with an initial air quality measurements of 4.36 parts-per-million (ppm) TVOC,
0.11ppm HCHO, and 29.1 PM10. After conducting series of tests, test results show that
HCHO decreased from 0.11 to 0.09 ppm, and PM10 with a decrease from 29.1
micrograms per cubic meter (μ g/m3

) to 22.1μ g/m3

. The results imply that the system
is effective in reducing air contaminants. Moreover, thirty respondents, composed of
industry experts and engineering students, evaluated the prototype and rated it as very
acceptable (x̅=4.47), signifying that the system is functional, workable, durable, safe,
aesthetic and economical. The primary beneficiaries of the project are the people
working in an enclosed room with poor ventilation, and people with allergies, asthma
and other respiratory diseases. The outcome of this project study aims to contribute to
the United Nations Sustainable Development Goals 3 and 7, promoting good health and
ensuring access to sustainable energy.