Online supporting information for the following article published in Indoor Air DOI: 10.1111/ina.12208 Experimental investigation into the interaction between the human body and room airflow and its effect on thermal comfort under stratum ventilation Yong Cheng1 and Zhang (John) Lin2 1 Department of Architecture and Civil Engineering, City University of Hong Kong, Kowloon, Hong Kong 2 Division of Building Science and Technology, City University of Hong Kong, Kowloon, Hong Kong Corresponding author: Dr Zhang (John) Lin (bsjzl@cityu.edu.hk) Fig. S1 Variation of average thermal sensation with time 1 Table S1 Cross-tabulation of thermal comfort and air movement preference (showing the number of the subjects and the corresponding percentage in parentheses) ACH 7 10 15 Thermal comfort Air movement preference Total Less No change More Uncomfortable (-2, -1, -0) 0 1 (10%) 9 (90%) 10 (100%) Comfortable (+0, +1, +2) 2 (6%) 24 (68%) 9 (26%) 35 (100%) Uncomfortable (-2, -1, -0) 0 2 (25%) 6 (75%) 8 (100%) Comfortable (+0, +1, +2) 4 (11%) 27 (73%) 6 (16%) 37 (100%) Uncomfortable (-2, -1, -0) 1 (20%) 1 (20%) 3 (60%) 5 (100%) Comfortable (+0, +1, +2) 9 (23%) 21 (52%) 10 (25%) 40 (100%) 2