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The Netherlands

Oxygen level vs temperature

What is the relation between the oxygen level and temperature?

Less oxygen can be dissolved in hot water than in cold water.

Hoe verhoudt O2 zich tot temperatuur

In Air:

Warm air contains the same percentage of oxygen as cold air, but the specific density is different than that of cold air which is heavier. This means that still 20% of oxygen is present, but 20% of a smaller amount.

Putting air through a blower causes compression and heats up the air but still nothing is changed in the amount of oxygen. The composition of the inlet air is not changed by compression.