Review on 27 Inch Removable Privacy Screen Filter For Widescreen Monitors - PYS Shield For 16:9 Aspect Ratio, Anti-Glare & Blue Light Reduction, Compatible With 27" Sizes (New 2022 Version) by Brian Cheney

I have two curved 27" monitors and unfortunately, this was a bit too large for it. Since my monitors had raised beveled edges around them, the screen couldn't squeeze in between so I'll just have to save it for future monitors. I did test it on the screen though and it worked quite well. It gave the screen a bit of a darker shade but not anything too drastic, and by stepping aside maybe 15 degrees, I couldn't see what was on the screen at all, except blackness, so I'd say it's pretty effective. Didn't notice the anti glare since I was testing it at night and I mainly have blackout windows anyway so glaring isn't much of a problem for me. If you have the right monitor types and are looking for some privacy filter, I'd definitely recommend this.