Should You Use Recirculation or Fresh Air Mode for Defogging on Rainy Days?
1 Answers
For defogging on rainy days, it is recommended to use the fresh air mode and adjust the airflow direction towards the windshield. Using fresh air mode helps expel the moisture exhaled by passengers from the vehicle, while the outside cold air is less prone to condensation. Below are scenarios where recirculation mode is advised: 1. When the outside air quality is poor with severe pollution, such as dusty roads, congested traffic, or areas near chemical plants with unpleasant odors; use recirculation to prevent contaminated air from entering the cabin. 2. During summer, to quickly cool down the interior with air conditioning, recirculation mode can be used. 3. In winter, using recirculation helps maintain warmer cabin temperatures. Below are scenarios for using fresh air mode: 1. When recirculation has been used for an extended period and opening windows is inconvenient, periodically switch to fresh air mode to allow fresh air into the cabin. 2. When there are multiple passengers in the car, fresh air mode helps maintain air freshness and prevents excessive humidity inside the cabin that could lead to window fogging.