This repository contains data files on ventilation rates and exposure risk assessment, as discussed in the comparison of IAQ standards (EN 16798-1:2019 and ASHRAE 62.1) and infection control documents (ASHRAE Standard 241, REHVA, WHO, and the Lancet COVID-19 Commission). The data includes analyses of ventilation design methods, exposure risk estimations, and infection risk metrics for classrooms, restaurants, and offices at various occupancy levels.