Mohsin, Abu S. M.Ahsan, Ahmmed FardanIslam, AnikKarim, Md. JunayedPoll, Md. Jakaria2025-07-022025-07-0220252025-05ID 20121005ID 20221026ID 21121005ID 20221021http://hdl.handle.net/10361/26438Cataloged from PDF version of final year design project.Includes bibliographical references (pages 110-112).This final year design project is submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Electrical and Electronic Engineering, 2025.Indoor CO₂ accumulation poses significant risks to human health and cognitive function, especially in confined and poorly ventilated spaces. This project investigates and compares three strategies for efficient CO₂ mitigation indoors: chemical absorption, electrochemical conversion, and a microalgae-based bioreactor system. Based on sustainability, cost, and effectiveness, the microalgae-based approach was selected and implemented. The designed system monitors environmental parameters in real time on display and remotely and optimizes CO₂ absorption by microalgae. Results indicate notable improvements in indoor air quality, demonstrating the potential of bio-integrated solutions for future smart and sustainable indoor environments.140 pagesenBRAC University project reports are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission.Carbon dioxide mitigationMicroalgae-based bioreactorChemical absorptionElectrochemical conversionRemote monitoringBio-integrated solutionsCarbon dioxide mitigation.Chemical elements.Energy conversion.Environmental monitoring--Remote sensing.Project Report