Mat Nor, Muhamad Asrul Affendi, Farah Waheda Othman, Nurhan Ayub, Irdayanti Mat Nashir, and Sudiyatno. 2025. “Smart HVAC Filtration Monitoring for Indoor Air Quality (IAQ): Enhance Efficiency and Environmental Sustainability”. Semarak Climate Science Letters 3 (1):1-14. https://doi.org/10.37934/scsl.3.1.114.