Although there are a number of different types of hand dryers, they all function similarly. They take in air, heat it up and blow it on to your hands in order to dry them as quickly as possible. In this article, we will go into more detail on how they work and why they are used.
Why Do We Use Hand Dryers?
We use hand dryers as a replacement for paper towels. Hand dryers are a lot better for the environment, and they will save you a lot of money in the long run when you compare them against the cost of paper towels. In fact, the typical restaurant should expect to save anywhere from $2,000 to $4,000 per year simply by switching from paper towels to hand dryers. This huge reduction in cost is one of the main contributors as to why they are so common to see in businesses. Basically, any restaurant that has a lot of public foot traffic going in and out of it throughout the day will probably be equipped with an air hand dryer.
How Do Air Hand Dryers Work?
All hand dryers have a heating element inside which quickly heats the air the instant it is turned on. A heating element heats up the air around it, and the air is pushed through the area and out onto your hands. The heating element is typically made up of a combination of nickel and chromium, and when it is activated, it will heat up to more than 50° above the surrounding air temperature.
The air is pushed past that heating element, and it comes out as hot air directly onto your hands. Most air hand dryers will allow you to adjust the nozzle and turn it upwards if you needed to face a different direction.
Why Does It Use Warm Air?
When your hands are wet, the warm air will accelerate the evaporation process and allow your hands to dry more quickly. The air doesn’t push the water off your hands but instead speeds up the evaporation drying time to around 15 to 30 seconds. If you are in a hurry, you can rub your hands together in order to speed up the process even further. By rubbing your hands, you will thin out the moisture that remains in your hands and accelerate the evaporation process even more.
The World Dryer Company has been offering the highest quality air hand dryer products for over 60 years. Visit their site to find out more about the products that they offer.
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