Engineering controls attempt to modify the environment in order to reduce the risk of TB transmission.

Characteristics of the environment include the size of the space and the ventilation (the smaller the space and the poorer the ventilation, the higher the risk)

Environmental Conditions Favoring Spread and Transmission of Tuberculosis

The environment determines the path that TB droplet nuclei take after they have become aerosolized. This determines whether or not the individual can inhale these particles and possibly become infected with TB.