| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | revolving door | Europe | Revolving doors are commonly used in urban buildings to increase energy efficiency and control air flow. | 1 |
| 2 | revolving door | Europe | Commonly used in office buildings and hotels for energy efficiency and climate control | 1 |
| 3 | revolving door | Europe | Revolving doors are commonly used in commercial buildings to regulate airflow and save energy. | 1 |
| 4 | revolving door | Europe | Common in office buildings and hotels for energy efficiency and convenience. | 1 |
| 5 | revolving door | Europe | Commonly used in high-traffic buildings to regulate airflow and provide energy efficiency. | 1 |