Should I Use Recirculation Mode When Turning on AC in Summer?

1 Answers
HeidiRose
07/29/25 4:05pm
Switching between recirculation and fresh air modes based on environmental conditions helps maintain air circulation and freshness inside the vehicle. Prolonged use of recirculation mode may lead to excessive carbon dioxide buildup, causing drowsiness and fatigue, which increases driving risks. Follow these guidelines for mode selection: 1. Activate recirculation mode: When using AC in summer to prevent hot outside air from entering the cabin, during smoggy days, or in traffic jams to avoid external pollutants. 2. Use fresh air mode: During highway driving to ensure proper ventilation, when smoking to quickly dissipate smoke, or after prolonged sun exposure to release trapped toxic gases.
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