The purpose of air in a dryer is to facilitate the drying process by carrying moisture away from the wet items being dried. In the context of household clothes dryers, the air is heated and circulated through the drum, where the wet clothes are placed. As the warm air comes into contact with the damp clothes, it absorbs the moisture and becomes humid.
To prevent the air from becoming saturated with moisture and losing its drying effectiveness, it is essential to remove the humid air from the dryer and replace it with fresh, dry air. This is typically achieved using an exhaust vent or duct that expels the humid air from the dryer to the outside of the house.
As the cycle continues, the process of replacing the humid air with dry air allows the dryer to continue removing moisture from the clothes until they are dry. The drying time can be further reduced by using higher heat settings or adding dryer sheets, which can help reduce static electricity and make clothes feel softer.
In summary, air in a dryer plays a crucial role in removing moisture from wet clothes and ensuring they become dry and ready to wear.