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Functions of Different Kinds of Hand Dryer

Hand dryers can work in multiple ways. Water can be removed from the hands either through evaporation or with fast-moving air that blows the water away.

In the past, most hand dryers worked through evaporation. This involved the use of a fan and a heater which warmed the air. The user would rub their hands together in the airflow, which would help to spread the moisture into a thinner layer and speed up the drying process.

How Hand Dryers Work

Evaporative hand dryers had many disadvantages. The first of these was efficiency. The need to heat the air, and the slow airflow means that the dryer required power for two functions, and because the drying process was quite slow, a lot of electricity would be used. This meant higher running costs.

The alternative to using slow moving warm air is to use fast moving jets of air to blow the water off the surface of the skin. With jet hand dryers such as the Mitsubishi Electric Wave u02, the air is accelerated through a narrow nozzle which increases its speed.

Newer jet hand dryers work much faster than older models. There is no need to wait for the air to warm up, and the process does not rely on the user rubbing their hands in the right area of the airflow to get the best results. 

Faster hand drying means less electricity is needed, particularly when ultra-efficient fan motors are used.

Jet hand dryers can better enclose the parts of the system which create noise. Rather than having a wide duct to carry the slow-moving air, a narrow nozzle is used. This means less noise is generated, and the quiet hand dryers cause less disturbance in surrounding areas.

Find Out More

If you are planning to upgrade to new hand dryers in your bathrooms and want to find out more about how different hand dryers work, and which system is right for your needs, please contact a member of our team to request a demonstration of the Mitsubishi Electric Wave range.

Wave i01
Wave u02

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