3M PF400W2E 40in 21:9 Privacy Filter monitor accessory

40in 21:9 Privacy Filter

The 3M PF400W2E is a privacy filter cut for 40in monitors with a 21:9 aspect ratio. It limits the viewing angle so only the person centred on the screen sees clear content. Office workers and shared-desk users gain visual confidentiality without removing the filter for collaborative moments.

Anti-glare and Blue Light Reduction

The filter surface includes an anti-glare coating that cuts reflections from overhead lighting and windows. Blue light reduction is also built in, lowering the short-wavelength output that contributes to eye fatigue during long sessions. Both features work together without requiring software configuration.

Slide-mount attachment

The accessory uses a slide-mount system that fits the bezel of compatible 40in 21:9 displays. It can be lifted away in seconds when full-screen sharing is needed and slides back without tools. The slim profile adds minimal depth so the monitor still sits close to a wall or arm mount.