– If air temperature is consistent in a room, why does air from a room fan feel cool on our skin? It’s the same air with the same temp… just faster
In: Biology
Please search “How does a fan cool you” is asked every day in the summer.
Your body senses heat flow. If your body warms the air near your skin, it says “the air is cooling me”. If the skin can’t transfer heat to the air, or even worse heat is transferred from the air to your body, the nerves say “very hot here”.
When the air is still, you warm it and it hangs close to your skin, making you feel warm. This is why sweaters are nice in winter. But if a fan blows the warm air away and replaces it with “average” air from the room, your body can warm that new air up and you’ll feel cool.
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