Reduce radon entry by:

• collecting it prior to entry into the building and discharging it to a safe location.
• modifying building pressure differentials or sealing entry points.

Reduce radon concentrations after entry by:

• dilution with increased ventilation.
• filtering radon and RDPs from the air.

Copyright 2000, Great Lakes Center for Occupational & Environmental Safety & Health, School of Public Health, University of Illinois at Chicago