| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | car air filter | Canada | Regularly replacing car air filters in Canada is common for optimal engine performance and fuel efficiency. | 1 |
| 2 | car air filter | Less developed countries | Car air filters are seen as a luxury maintenance item in less developed countries due to limited resources. | 1 |
| 3 | car air filter | Southeast Asia | Car air filters in Southeast Asia are less commonly replaced due to limited awareness of their importance, which can lead to potential engine damage. | 1 |