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General Science / Re: Does UVC light sterilize only the surface?
« on: 06/11/2015 08:44:24 »
UVC is primarily a surface sterilant, though it can be used to sterilise thin layers of circulating water.
We use heavy cotton overalls for protection against UV therapy sources: penetration through a lab coat or jeans is almost negligible. Since any pathogens in a pillow will be distributed throughout the filling (where it's warm and moist) you really need steam, bleach, gas or gamma radiation, to have any useful effect.
Any sterilant (including UVC) will be extremely dangerous if it is effective - you are made of the same stuff as bacteria, but they are a lot tougher. Don't try any of this at home!
We use heavy cotton overalls for protection against UV therapy sources: penetration through a lab coat or jeans is almost negligible. Since any pathogens in a pillow will be distributed throughout the filling (where it's warm and moist) you really need steam, bleach, gas or gamma radiation, to have any useful effect.
Any sterilant (including UVC) will be extremely dangerous if it is effective - you are made of the same stuff as bacteria, but they are a lot tougher. Don't try any of this at home!
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