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What Is UVC and How Is It Work in Hand Dryers?

Views:5     Author:Site Editor     Publish Time: 2021-07-28      Origin:Site

Ultraviolet light is a form of radiation and an invisible part of the electromagnetic spectrum. It has a wavelength between 100nm-380nm. UVC with a wavelength of 200nm-280nm is a known disinfectant for air, water, and nonporous surfaces, which has effectively been used for decades to reduce the spread of bacteria, such as tuberculosis. Experiments have proved that UVC wave band has good germicidal efficacy, and UVC 253.7 is best one, which can kill microbial bacteria inside the machine and give the clean wind.

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Some people suspected that hot-air hand dryers in public restrooms might be sucking up bacteria from the air, and dumping them on the newly washed hands of unsuspecting patrons. We are always thinking how to solve it.

The blue light that shines on the hands in some hand dryers is there just for show and does not kill germs. UV is invisible and a blue light is often used to give the impression of UV, whilst the UV is in another area of the unit. This is a misconception which circulates and gives a perception that this is what it is there to do. It is really there just to look nice. However, it can be used as a guide to where the airflow is, so does have its advantages in speeding up dry times.

With the UVC installed on the motor cover of the hand dryer, when the air passes through inside and outside, it is able to penetrate the cell walls of microorganisms and shatter the DNA, making it impossible for them to grow and reproduce. In this way, the hand dryer is in a clean surroundings and people can dry their hands in a hygienic and safe method because it avoids the direct access to the skins and eyes.

For more information or for help in finding your ideal hand dryer, just contact us directly by hotec@cnhotec.com.



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