Questionnaire responses under four experimental conditions with different ventilation systems and air temperatures

Questionnaire responses under four experimental conditions with different ventilation systems and air temperatures AUTHORS: Dominika Kwiecińska*, Anna Bogdan, Marcin Michalski, Warsaw University of Technology, Faculty of Environmental Engineering *corresponding author: [e-mail] DESCRIPTION This dataset contains processed questionnaire responses collected during laboratory experiments investigating subjective perception of the thermal environment under four controlled environmental conditions. The questionnaire included standardized thermal assessment scales together with additional study-specific questions concerning environmental perception and subjective well-being. The dataset includes responses related to: whole-body thermal sensation thermal preference thermal comfort perceived thermal burden thermal environment tolerability perceived air freshness perceived air movement preferred air movement perceived air dryness satisfaction with the operating room environment perceived acceptability of the thermal environment current alertness level overall well-being local thermal sensation of different body regions All responses were collected under four experimental conditions: MV19, LAF19, MV26, and LAF26. MV refers to Mixing Ventilation (turbulent airflow system), while LAF refers to Laminar Airflow (vertical unidirectional airflow system). The numbers 19 and 26 indicate the supply air temperature (°C) applied under each ventilation condition. The dataset is fully anonymized and does not contain any personal identifiers. DATASET STRUCTURE The dataset consists of one file: questionnaire_responses.csv Contains questionnaire responses collected during all experimental sessions. Variables: *survey_id – anonymous participant identifier*gender – participant gender*condition – experimental condition*question_1 – whole-body thermal sensation*question_2 – thermal preference*question_3 – overall thermal comfort*question_4 – perceived thermal burden of the operating room environment*question_5 – thermal environment tolerability*question_6 – perceived air freshness*question_7 – perceived air movement*question_8 – preferred air movement*question_9 – perceived air dryness*question_10 – satisfaction with the operating room environment*question_11 – perceived acceptability of the thermal environment*question_12 – current alertness level*question_13 – overall well-being in the current environment*question_14–question_23 – local thermal sensation of individual body regions RESPONSE SCALES Response scales for each question are described in the accompanying Readme.txt file. FUNDINGThis research was funded in whole by National Science Centre, Poland, grant number 2021/41/B/ST8/00700.