
Easy to apply, just make sure your screen is completely clean. To make it totally private, the viewing angle is more like 50-60 degrees. You need to increase the screen brightness as it decreases the brightness when viewed directly. It adds about 0.5mm of travel when I close my MacBook Air 13" but doesn't interfere with auto shut down, close or drain the battery. Overall worth it and happy with it.

ποΈ Enhanced Eye Protection: 2 Pack 13.3" Laptop Screen Protector - Blue Light Filter, Anti Glare & Blue Light Blocking Screen Protector for All 13.3" 16:9 Laptops (Diagonal Length 13.3", Bezel Not Included)
10 Review

Enhanced Privacy with 3M Privacy Filter for 14 Inch Widescreen Laptop - Flip-Share COMPLY Attachment, Gloss/Matte Reversible, Blue Light Reduction, Screen Protection, 16:9 Aspect Ratio (PF140W9B)
10 Review

π Enhanced Privacy with 3M Gold Privacy Filter for 23" Widescreen Monitor (GF230W9B)
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π₯οΈ Clear 3M Anti-Glare Filter for 23.6" Widescreen Monitor (AG236W9B)
12 Review