STALEAIR
| Date | Clue |
|---|---|
| 2022-08-08 | Stuffiness that lingers in an unventilated room |
| 2021-05-04 | Stuffy atmosphere |
| 2017-04-18 | Result of poor ventilation |
| 2009-08-27 | Result of poor ventilation |
| Date | Clue |
|---|---|
| 2022-08-08 | Stuffiness that lingers in an unventilated room |
| 2021-05-04 | Stuffy atmosphere |
| 2017-04-18 | Result of poor ventilation |
| 2009-08-27 | Result of poor ventilation |