Original: Burj Khalifa is highly compartmentalised. Pressurized, air-conditioned refuge floors are located approximately every 35 floors where people can shelter on their long walk down to safety in case of an emergency or fire.
Simplified: Burj Khalifa has pressurized, air-conditioned refuge floors are located approximately every 35 floors in case of an emergency or fire .50 m (164 ft) deep.