| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | air purifier | Japan | Popular household item for maintaining cleanliness and hygiene | 1 |
| 2 | vent brush | Japan | Less commonly used in traditional homes due to different ventilation systems and construction methods | 1 |
| 3 | vent brush | Japan | Used for cleaning dust and debris from vehicle air vents due to the high prevalence of cars with built-in air conditioning and heating systems. | 1 |
| 4 | vent brush | Japan | Less commonly used due to the prevalence of centralized air conditioning systems in homes and buildings. | 1 |