@256f7651 

Ohhh it's an anti-*glare* filter.

My first PC had one of those, complete with grounding clip.

Anyone else used to believe it was against the CRT's radioactivity? 

 @05a078bf That's what it was. The first one only lists glare, but many (like the other one I included) listed static, UV, and radiation protection. 

 @256f7651 

You're right, I didn't see it right there on the 2nd pic 🤦‍♂️  Is there any truth to these claims? 

 @05a078bf I have no idea, but probably not. I mean, it's a sheet of glass, so that's an additional layer between you and the CRT gun, so there's that I guess. 🤷‍♂️ 

 @256f7651 

I think there's, like, leaded glass that absorbs radiation more? But yeah... kinda doubt these filters would be made of that 🤷‍♂️