Al-Ghamdi, Waleed Saeed, Aiman El-Saed, Majid Al-Shamrani, Ali Al-Rabou, Abdullatif Neamatallah, and Fahad Al-Mehmadi. 2023. “The Effect of Portable Air-Purifiers in Improving Indoor Air Quality in Pediatric Intensive Care Units at Two Tertiary Hospitals in Riyadh, Saudi Arabia”. Journal of Agricultural, Environmental and Veterinary Sciences 7 (1): 66-75. https://doi.org/10.26389/AJSRP.G211122.