Assessment of users' responses to air change rates in free running office buildings Bode Abiodun Orola, Kolawole Ajibola, Oyeyemi Oluwaseun Arowolo and Ayomide Abiodun Omolola Sust. Build., 2 (2017) 1 Published online: 16 January 2017 DOI: 10.1051/sbuild/2016007