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How long does it take for UV light to kill bacteria?

How long does it take for UV light to kill bacteria?

It can take seconds to minutes or even hours for UV light to kill bacteria, germs, and viruses.  How long it takes to kill bacteria with UV light depends on the intensity.  

There are 3 main types of UV light, UV-A, UV-B, and UV-C.  UV-A has been deemed ineffective in killing germs. UV-B does kill germs but takes a lot longer than UV-C light.  For UV sanitizer purposes UV-C is the best fit as it kills more germs faster than the other two types of UV light.

Both high intensities and low intensity will kill germs, but they take different a different duration of time.  If a UV light is at a low intensity it can take hours or longer.  

Purifying UV has focused on providing the best intensity to kill germs on all the most important items you touch, put in your pockets, and depends on in your daily life.  


UV-C Light Germicidal Effect

For sanitization purposes UV-C light is the best fit.  The amount of time it takes for it to kill germs still depends on intensity and the frequency of the UV-C light.  Purifying UV has selected the perfect balance of frequency and intensity to kill germs.

High intensity UV light means that bacteria, viruses, and germs are killed in under a minute.  In fact an average bacteria dies from high intensity UV light exposure in just ten seconds, when done at a distance of 6 inches.  

Our UV Light Sanitizer Box ensures that whatever items you place in the box are at the right distance so germs won’t stand a chance.  

You can watch a time-lapse video of how UV kills germs here.
Order a UV Sanitizer Light Box here.


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