CO2 Laser Reflective Study Here is a great video of how much IR light

Lasers
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CO2 Laser Reflective Study

Here is a great video of how much IR light is scattered from different materials. This is the reason to be wearing safety glasses at all times!

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Quick question - is the stock plexy added to this units any good in stopping the reflections ?

By logic it seems so (it is plexy after all but just want to be extra sure)