Do we use different parts of our lungs to produce hot and cold air?

Answer 1

I'm guessing your wondering why when you blow air sometimes it feels cooler? It depends on the speed you blow and the amount of moisture on your hand (if your blowing on your hand) that takes heat with it when it evaporates due to the blowing.

Your nose and throat have the job of heating up the air before it reaches your lungs so in your lungs it is all the same temp. This is why your nose starts to run when its cold out, your body raises the temperature in your nose by opening the capillaries wider so more heat is exchanged with the air your inhaling.

Your lungs work most efficently at body temperature so this is why all the air you inhale is warmed up before reaching your lungs.


Try this (once) if you want to:
If you go out side on a very very cold day (like -30c/-22f) and take in a deep breath real quick you will get an immense pain in your lungs because the cold air damage's your lungs. Your capillaries in your lungs will contract to prevent further damage from the cold and in a few seconds you will feel a general feeling of weakness because when the capillaries in your lungs contract you get less blood in the blood stream.

Answer 2

its not the same temperature.

if you exhale slowly the air will have been in your body longer and has heated more than when you inhale and exhale fast.

its all in how hard you blow

Answer 3

no its all the same temperature as it leaves our body