Epstein provided interior architectural design, electrical engineering and lighting design services for the renovation and expansion of 22 existing men’s and women’s restrooms in Terminals 1 and 3 at Chicago's O’Hare International Airport. Several family restrooms and mother’s rooms were also integrated into the new designs.

The new restrooms were modernized to include state-of-the-art lavatories with water, soap and hand dryer dispensers all located at the sink in order to reduce paper waste and water on the floor.

Toilet stalls were made wider and deeper to improve overall circulation and comfort for passengers. Energy efficient lighting was installed and mechanical exhaust improved to complement the updated restrooms. New finishes and materials were selected to provide long term durability while improving the travelers experience.