3M Privacy Filter 23.0-inch Widescreen Monitor — Reversible Gloss/Matte, Blue-Light Reduction & Scratch Protection

The 3M Privacy Filter for 23.0-inch widescreen monitors (PF230W1B) is a reversible screen filter that blocks side viewing, reduces blue light transmission and protects your LCD from scratches while keeping on-screen data private.

Keep sensitive information visible only to you without changing how your display performs. The 3M PF230W1B uses microlouver technology to create a 60-degree privacy cone so people to the side see a darkened screen, while you retain clear front-facing image quality. The filter also offers a choice of glossy or matte finishes, reduces reflections and cuts about 35% of blue light to lessen eye strain from prolonged screen use. It fits 16:9 widescreen monitors with a 23" diagonal (20 1/16" x 11 5/16") and is designed to be compatible with slightly curved panels.

How does this filter keep my on-screen data private?

The filter's microlouver construction directs light forward and blocks off-axis viewing so people outside roughly a 60-degree viewing angle see a blacked-out screen. This prevents shoulder surfers and passersby from reading emails, financials, or confidential documents.

• Microlouver array creates a sharp privacy cutoff at side angles.
• 1.5x more effective privacy than many competing models.
• Blocks side views while maintaining front image clarity.
• Designed for high-traffic or open-plan workspaces.

Which finish should I use: glossy or matte?

The PF230W1B is reversible so you can choose gloss for richer colors and deeper contrast or matte to minimize glare from overhead lights. Swap surfaces depending on lighting and your preference for sheen versus anti-reflection performance.

• Gloss side enhances color vibrancy for media and design tasks.
• Matte side reduces reflections in bright or fluorescent-lit areas.
• Reversible design offers flexibility without buying two filters.
• Easy to flip or reinstall when your working environment changes.

Will this filter affect display clarity or eye comfort?

The filter is engineered to preserve front-facing image quality while limiting reflections and diminishing blue light. Expect a slight change in overall brightness, but the filter helps you see content more clearly by cutting glare and removing distracting side views.

• Reduces approximately 35% of blue light transmission.
• Helps minimize reflections so text and images appear cleaner.
• Compatible with curved monitors to maintain uniform clarity.
• Protects the fragile LCD surface from dust, fingerprints, and scratches.

How do I install and size this privacy filter for my monitor?

Measure your screen diagonally (23") and confirm the active area matches 20 1/16" width by 11 5/16" height. Installation is typically tool-free with 3M mounting options: static-adhesive strips or removable tabs depending on your mounting preference and whether you plan to move the filter between displays.

• Fits 16:9 widescreen 23" displays (20 1/16" x 11 5/16").
• Works with slightly curved screens for consistent coverage.
• Mounting hardware options allow semi-permanent or removable installation.
• Care instructions: clean with a soft, lint-free cloth; avoid harsh chemicals.

Who is this for? The 3M PF230W1B is intended for professionals and frequent screen users who work in shared spaces—finance, healthcare, legal, customer service, or anyone handling confidential information in open-plan offices, coffee shops, or public areas. It's also useful for designers and content creators who want the choice between glossy or anti-glare finishes while protecting their display from scratches and reducing blue light exposure during long sessions.