<p>Conducted literature review on air pollution control methods and filtration techniques.<br>Assisted in designing project methodology, including problem definition, objectives, and experimental plan.<br>Collected and prepared cotton-based filter material using chemical treatments (alkali, acid hydrolysis, drying).<br>Analyzed and compared the performance of multiple filtration techniques (HEPA, activated carbon, electrostatic precipitation, nano-filters).<br>Studied the influence of environmental factors (temperature, humidity) on filtration efficiency.<br><br>Applied dosimetry models to assess human health impacts of air pollution.<br><br>Collaborated in preparing progress reports, roadmaps, and presentations to document research outcomes.<br><br>Contributed to optimization strategies for improving air filtration performance and sustainability.<br></p>