Hand dryers were well appreciated and accepted by people due to the fact that they can dry their hands faster and can kill bacteria within 10 seconds, however, these machines did not come out just like the way they were announced. It turned out that they have a lot of flaws. First of all they are very loud, just like a street drill, and some experts claim that they need much more time to dry the hands than the manufacturers induced, and of course there is the bacteria.

Hand towels versus had dryers

Bacteria spreads more rapidly on wet hands if you shake hands more often and do not dry them well at the same time. Studies have shown that bacteria on wet hands transfer 1,000 times faster.

The greatest hand dryer manufacturers, Dyson and Kimberly-Clark try with all their strengths to convince us how they care about other people’s hygiene. They have published a research showing that the machines increase the number of bacteria on the hands and even though they cannot explain why is that so, they believe that the reason for this is that the hands remain wet and there is greater possibility that more bacteria is being gained from the environment. According to their research, paper towels are the most effective ways of drying hands. Dyson tried to disprove this assertion which shows how the machines are as equally hygienic as the paper towels. Independent experts agree with this assertion and say that it is impossible to say which way is the best, but it rather depends on the different circumstances.

Do not rub your hands

Many people rub their hands when they dry them with the hand dryers so that they can expedite drying, but this way will only increase the number of bacteria. It is important not to touch the inside of the machine as there is great amount of bacteria in there.

Count until 20

All the studies have shown that none of the machines did not reach the given time of 10 seconds to completely dry the hands. However, 20 seconds are needed to dry the hands effectively, but very small number of people will stay so long to dry their hands, says the microbiologist Ron Cuttler. According to his knowledge, the best method is to first dry the hands with the hand dryer, and then use the towels.

Affection of the noise

Scientists from London University discovered how the noise of these machines terrorize older people, people with dementia and hyperacusis. In children with autism and Asperger’s syndrome this can lead to noise oversensitivity.

The main person in the unit for practice noise research in Goldsmith University, John Levack Drever claims that many hand dryers have greater noise level than those in the commercials. He is full of understanding how the manufacturers care about people’s hygiene as well as ergonomics, but we will come into a situation where people would stop washing and drying their hands. He adds that manufacturers should think about the noise as well in their future design.

Washing is important

Microbiologist Hugh Pennigton says that it is not that significant how people dry their hands, but the important thing is how they wash them. There was a research carried out in 2008 where liquid soaps dispensers have been put in the gas station toilets throughout the UK and only 32% of men and 64% of women used it, out of 200 thousand people who entered there. He advises that the hands need to be put under warm water, soap should be used and the hands need to be well rubbed all the way to the wrists, between the fingers and around the nails. The time spent on rubbing hands with soap should be 20 seconds.

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Hand dryers were well appreciated and accepted by people due to the fact that they can dry their hands faster and can kill bacteria within 10 seconds, however, these machines did not come out just like the way they were announced. It turned out that they have a lot...