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Ausoge t1_jcmuezg wrote

Reply to comment by joyamazingpinoy in If UV radiation is used to disinfect and sterilise things then why isn't everything the sun touches (your skin, the sidewalk etc) sterile? by Critwhoris

That will probably be more to do with moisture being able to escape - with open windows, your house will be a lot drier than if you keep them closed for weeks at a time. You wouldn't need to open windows to get the UV effect, just your curtains.

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