There's a perforated metal sheet inside the door of every consumer microwave oven that blocks microwave RF, and permits visible light to pass.
Remove it. Cut it up. Fit it into sunglass frames or goggles or whatever.
So let's make the holes smaller. We want to permit nanometer-wave light to pass while blocking centimeter-wave RF. I'm not seeing a particularly difficult engineering challenge here. :)
> You'd likely be better off with aluminum foil than the door.
Did you think this through at all? Running away and hiding while wearing opaque aluminum foil blinders is kind of a unilateral non-starter.
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Anyway, we also have this: Window film. Let's look at an example.
3M Thinsulate Climate Control 75 is a self-adhesive film that blocks greater than 99% of RF from 100MHz to 4.5GHz[1], which I might suggest is pretty good for protecting the ol' eyeballs from a brief encounter with the blindness machine.
The combination of it and a single pane of window glass provides 74% visible light transmission[2]. I further suggest that this allows plenty of light with which to safely move around.
[1]: https://multimedia.3m.com/mws/media/1704860O/electromagnetic...
[2]: https://multimedia.3m.com/mws/media/1435912O/product-bulleti...
Please be constructive instead of dismissive.
Attenuation of 95 GHz seems likely to be in the realm of 30-40dB, which is also in the realm of letting less than 1% through.