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Turn Off Recirculation to Defog Faster, Guides Tell Winter Drivers

AA guidance plus viral clips highlight high heat with AC, windscreen fan on max, recirculation switched off for drier air.

Overview

  • Driving Test Success shows that setting the windscreen fan to maximum with the temperature high melts ice from inside the cabin.
  • Kylemore Cars advises switching off the air‑recirculation button to replace humid cabin air with drier outside air for quicker clearing.
  • Experts recommend running the air conditioning in cold weather because it removes moisture that causes misted glass.
  • The AA urges use of the warm air blower on the windscreen, rear demister and heated mirrors, plus staying with the vehicle while the engine runs.
  • Clear View Driving cautions against relying on wipers for frost, while some social media users report surprise at the tips and others raise fuel‑use concerns.