A thermo hygrometer is used to monitor which two aspects of a restorative drying environment?

A thermo hygrometer is specifically designed to measure two critical environmental factors: temperature and humidity. In the context of restorative drying, understanding the temperature helps in maintaining the optimal conditions necessary for effective drying processes. Humidity is equally important because high humidity levels can hinder evaporation and prolong the drying time for wet materials. By continuously monitoring these two aspects, restoration professionals can make informed decisions to optimize the drying environment, ensuring that materials dry effectively and preventing further damage such as mold growth or structural issues.

The other options do not identify the primary functions of a thermo hygrometer accurately, as it does not measure pressure or airflow directly.