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external/lab-equipment/biosafety-cabinets/biosafety-cabinets.md

@@ -44,7 +44,7 @@ If you are not sure a BSC is the right hood to use for your experiment, please c
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--   Be aware that **UV-lights act only on surfaces exposed to them**, the surfaces in the shadow are not disinfected and a chemical disinfection is still necessary after a UV decontamination.
+-   Be aware that **UV-lights act only on surfaces exposed to them**, the surfaces in the shadow are not disinfected and a chemical disinfection is still necessary after a UV decontamination. UV lights are damaging plastic material and gives a false feeling of disinfection while not being 100% efficient. Because of this, we do not recommend the usage of UV lights and advise to prefer the usage of disinfectant.
 
 -   The BSC must be **decontaminated before and after each use**. The interior surfaces should be wiped with an appropriate disinfectant that would kill any microorganisms that could be found in the cabinet. 70% ethanol is not effective against yeast and fungi, you should **use Bacillol 30 foam or tissues**.