3M Privacy Filter for 34in Monitor, 21:9, PF340W2B

Product Overview

AI-generated summary

If you’re working with a 34-inch ultrawide (21:9) in an open-plan office and you need “heads-up” privacy without making people feel like you’re running an interrogation booth, the 3M PF340W2B is a sensible choice. 3M privacy films are usually good at keeping casual viewers from reading what’s on-screen at typical side angles, which is where most privacy filters earn their keep. At ~£131 ex-VAT, it’s not cheap, but it’s the sort of spend that can save you from constantly angling screens, beefing up curtains/blinds, or worrying about sensitive documents when you’re sharing space.

That said, I wouldn’t buy it if you’re expecting true privacy for anyone who sits off-axis but closer than you think, or if you’re sensitive to display brightness/colour changes—privacy filters can make screens look a bit dimmer and slightly different. Also, if you’re regularly swapping monitors or need easy repositioning, these films can be fiddly to get perfectly aligned the first time. Who it suits best: finance, legal, HR, IT support desks, and anyone on a busy floor with real confidentiality concerns. Who should skip: creative teams and anyone who prioritises colour fidelity over screen viewing angles, or users who want a “temporary” solution.