A huge number of portable sterilizers for smartphones, masks and other small items have appeared on Aliexpress. Even Xiaomi has released such a gadget.
The principle of operation of all these sterilizers is very simple: the object is shone with ultraviolet light.
The principle of such sterilization is based on the fact that the radiation spectrum of the ultraviolet source (wavelength 253.7 nm) coincides with the absorption spectrum of the DNA of microorganisms, which can be the cause of their death during prolonged treatment with radiation, however, with insufficiently powerful action of ultraviolet radiation, the cells of microorganisms may not die, so I do not know how much such sterilizers effective.
The cheapest sterilizers of this type cost about $ 15.
It is claimed that the disinfection power is 5 W, the radiation wavelength is the same 253.7 nm. Disinfection is carried out within 3 minutes.
https://www.youtube.com/watch? v = jCJoivou8Q8
A smartphone can be placed in such a sterilizer only without a case and you need to understand that if you use cover, take the smartphone out of the case, sterilize it and put it back in the dirty case completely meaningless.
EUE, part of the Xiaomi ecosystem, has announced a $ 58 pre-order for wireless sterilizer cases for smartphones.
The idea behind this gadget is to constantly carry your smartphone with you in a sterilizer case and sterilize it after each use.
Surely, UV sterilizers were on Ali before the coronavirus, but now there are a lot of them there.
By the way, now, returning from the street, I not only wash my hands with soap, but also wipe the phone with a cloth with a disinfectant. Perhaps it will help.
© 2020, Alexey Nadezhin
The main topic of my blog is technology in human life. I write reviews, share experiences, talk about all sorts of interesting things. My second project - lamptest.ru. I test LED bulbs and help me figure out which ones are good and which are not.