21.5 Inch 16:9 Computer Privacy Screen Filter for Monitor - Anti-Glare

In this review the SightPro 21.5 in privacy screen proves to be a practical choice for anyone who needs to protect on-screen data in public or shared spaces. The bottom line: it delivers reliable side-view blackout while preserving a clear view straight-on, making it well suited for commuters, mobile workers, and open-plan offices. Installation is straightforward with two attachment options, and the package includes the extra hardware and a cleaning cloth, so buyers get a complete kit right out of the box.

Key Features

• Exact fit dimensions: The filter measures 18 3/4 in by 10 9/16 in for a 21.5 in diagonal, which helps users verify compatibility by screen width and height rather than diagonal only.
• Two attachment options: Includes clear adhesive strips and slide mount tabs so the filter can be permanently attached or slid on and off for displays with a raised bezel.
• Privacy blackout: The multi-layered film blacks out side views to keep displayed information private in public settings and crowded workspaces.
• Anti-glare and eye protection: Reduces glare and filters some UV and blue light to improve on-screen comfort over long sessions.
• Complete package: Ships with adhesive strips, slide mount tabs, and a microfiber cleaning cloth so users have everything needed for setup and upkeep.
• Broad compatibility: Engineered to work with many major monitor brands, provided the physical width and height match the listed dimensions.

Who It's For

This privacy screen is ideal for healthcare professionals, business travelers, students, and remote workers who frequently use laptops or monitors in public places and need to safeguard sensitive information. Its slide-on option suits users who want to remove the filter occasionally without leaving adhesive residue on a raised bezel display.

Those who should look elsewhere include people who cannot or will not measure their screen dimensions precisely, as the filter requires matching the 18 3/4 in by 10 9/16 in active area. Also, it will not block visibility directly behind the user, so it is not a substitute for a private room.

Pros & Cons

Pros

• Effective side-view privacy that keeps on-screen content obscured to nearby viewers.
• Two mounting methods provide flexibility for both permanent and removable installation.
• Anti-glare and partial UV/blue light filtering improve viewing comfort.
• Complete kit includes mounting hardware and a cleaning cloth for immediate setup.

Cons

• Adhesive performance is mixed according to customers, so some users may need to adjust or replace strips for a secure fit.
• Fit can be imperfect if screen width/height are not measured carefully; diagonal size alone is not a reliable selector.

Specifications

Filter dimensions	Width 18 3/4 in x Height 10 9/16 in (Diagonal 21.5 in)
Attachment options	Clear adhesive strips; slide mount tabs for raised bezel
Included accessories	Adhesive strips (2 sets), slide mount tabs (2 sets), microfiber cloth
Compatibility	Designed for HP, Dell, Samsung, Lenovo, LG, Acer, ASUS, ViewSonic and other brands
Protection features	Side-view blackout, anti-glare, partial UV and blue light reduction
Compliance	Section 889 and TAA compliant

Our Verdict

The SightPro 21.5 in privacy screen is a solid, value-minded choice for professionals and travelers who need dependable side-view blackout and reduced glare. Its dual mounting methods and complete accessory set make installation simple, but buyers must measure their screen width and height carefully and be prepared to address variable adhesive performance. For people who prioritize on-the-go privacy without permanent modifications, this filter offers practical protection at a reasonable price.

Frequently Asked Questions

Will this fit my 21.5 in monitor?
Measure your screen width and height and compare to 18 3/4 in x 10 9/16 in rather than relying only on the diagonal size.

Can I remove the filter easily?
Yes: use the slide mount tabs on displays with a raised bezel to slide the filter on and off; adhesive strips are more permanent.

Does it block blue light?
It reduces some blue light and UV and also lowers glare, but it is not a substitute for dedicated blue-light eyewear if extensive filtering is required.