These directions are for CHS x3-105 - the x is the floor number so just get to the right floor and it will be in the same place.
Directions from Westwood Blvd
To get to CHS - go south on Westwood from Ackerman and take a left on Charles Young Drive.Go into CHS though the School of Public Health entrance on your right (technically 650 Charles Young). Go straight into the CHS building and there will be a bank of elevators straight ahead off to your left. Go to the xth floor and go right off the elevator. Walk along until you come to the first perpendicular corridor - which is the 3rd corridor. When you get to corridor 3, you turn left and walk all the way to the end - and you can look for room 105 within that corridor.
Directions from Court of Sciences
Head South passing Boelter Hall on your right. Pass the BombShelter Cafe and Boyer Hall (note orange 'ears' sculpture). Head through construction corridor keeping to the right. Enter Life Sciences Building (note stone sculptures flanking doorway). Continue straight on, follow as the corridor turns right and then left (note grey lockers on left side). Pass the junction and in 30 yards reach elevators on left side (or stairs). Go to xth floor. Turn right out of elevator and x3-105 is straight ahead of you (15 yards).