Question

why do hand dryers use hot air instead of just air​

Answer 1

Answer:

this is because hot air evaporates water faster and your hands dry early

one more reason is it is electric machine so due to heat it gives hot air

Answer 2

Hand dryers use hot air instead of just air because hand dryers are work by using a heating element.

• So the air comes from the hand dryer is hot it blows onto your hands, water evaporates quickly.

• Hot air dryers are more efficient devices and also energy-efficient.

• Hand dryers are two types. 1) Got air and dryers 2) Cold air hand dryers.

• Both are work in the same way. But hot air is the best option for everyone, it is hygienic also.