NATURAL CROSS VENTILATION CLASSROOMS: CO2 AND PROTECTION AGAINST PANDEMICS

Abstract

Natural cross ventilation is considered an effective and sustainable strategy against  respiratory pandemics. Un factor que puede  reducir la transmisión cruzada de virus entre humanos es el distanciamiento social, requiring an understanding of airflow as a means of particle transmission, especially during prolonged exposure times, considering carbon dioxide (CO2) emissions as a marker of exhaled air. Fresh air entering through doors and windows improves air quality, reducing some indoor pollutants. Windows and doors serve as good means of natural ventilation,  utilizing different typologies based on various methods such as direct crossventilation, diagonal ventilation, or ventilation based on  differences in height, with flows due to temperature or pressure differences, resulting in energy and emission savings. Professionals responsible for the design of windows, doors, and other openings face the challenge of improving indoor air quality sustainably, especially in educational facilities.