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Blood samples:
1. Research hall after passing through scanners bellow the air-con vent on the right
2. Examination room 1 on the table next to the shoulder of body
3. Examination room 2 on the left side of the floor
4. Habitation hall after passing scanners on the floor to the left of the ladders
5. Sleeping quarters on the right side of the floor
6.& 7. Lounge area, first is on the floor left side, second on couch on the right side
8. In storage room on the right on the storage barrel

Source: Escape Games 24