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Transparent rectangular privacy filter for 21 inch widescreen monitor, matte glossy finish

STARTECH

STARTECH PRIVSCNMON21 21" Privacy Filter Monitor Accessory

SKU CH-CHB4-FGWW5 MPN PRIVSCNMON21

A 21 inch privacy filter blocks side views beyond +/-30 degrees, reduces blue light by 30% to 40%, and attaches with adhesive strips or slide tabs

  • Overall dimensions18.7 in × 10.5 in × 0.1 in
  • Product typePrivacy Filter
  • DetailsColor: Transparent Material: Plastic Included in Package: 1
  • Key featuresPROTECT SENSITIVE DATA: This monitor security filter provide
  • Product weight2.8 oz
  • Protects on-screen data with a +/-30 degree viewing angle
  • Reduces blue light by 30% to 40% to lessen eye strain
  • Attaches cleanly using adhesive strips or slide-mount tabs
  • Fits 16:9 widescreen displays measuring 21 inches diagonally
  • Lightweight plastic filter weighs 2.8 oz and is 0.10 inch thick

21-inch Widescreen Privacy Filter

The StarTech.com PRIVSCNMON21 is a transparent plastic privacy screen built for 16:9 21-inch displays. It limits visible content to a +/-30 degree viewing angle from centre, keeping on-screen data confidential in open offices or shared workspaces. The filter suits professionals who handle sensitive information and need a simple, removable layer of visual security without replacing the monitor.

Blue Light Reduction and Eye Comfort

The accessory reduces blue light emission by 30% to 40%, which helps lower digital eye strain during long sessions. Because it is a passive film, it adds no active cooling, fan noise or power draw to the system. The slim .10-inch profile and 2.8 oz weight mean the monitor’s original thermals and acoustics remain unchanged after installation.

Two Mounting Options in the Box

The package includes one privacy screen, one set of adhesive strips, one set of slide mount tabs and a quick start guide. Adhesive strips attach the filter directly to the screen for a semi-permanent fit that leaves no permanent residue when removed. Slide mount tabs fasten to the bezel instead, allowing the filter to be lifted away quickly for collaborative work or cleaning.

How it compares

Measured against everything we stock in Monitor Mounts & Display Accessories, at today’s prices. Recalculated every night.

Price $47.99
Pricier than about 56% of the 10,638 comparable items (median $42.99).

Specifications

Product
Brand nameStarTech.com
Model namePRIVSCNMON21
Product typePrivacy Filter
Size & build
Overall dimensions18.7 in × 10.5 in × 0.1 in
Product weight2.8 oz
Shipping weight0.40 kg
Package size610 × 371 × 5 mm

Questions about this item

How do I attach the privacy filter to my 21-inch monitor without damaging the screen?

Clean the display, then choose either the adhesive strips for direct screen mounting or the slide mount tabs that stick to the bezel; both methods leave no permanent residue when removed.

Will the adhesive strips or slide tabs need replacing after repeated removal?

The adhesive strips and slide mount tabs are designed for removable use, but their grip can weaken after multiple reapplications; keep the spare set from the package for future reattachment.

At what viewing angle does the privacy effect stop working on this 16:9 filter?

The filter blocks visibility beyond +/-30 degrees from the centre, so anyone viewing from wider side angles sees a darkened screen while the user sees a clear image.

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