The Verkstan is a significant evolution of the RC3 design, mostly to reduce the printing time. Generally made by hobbyists at home, but some large companies have also dedicated their arrays of 3D printers to making them. 3D printed headband paired with landscape A4 acetate sheets, or specifically laser- or die-cut equivalents.
Comfort: Narrow headband (which doesn’t meet UK [regulations]) and sprung sides make it likely to be uncomfortable for sustained use. Unlikely to conform well to those with very small or large heads. Fits very close to the face. Lightweight (~20g)
Ease of use: Easy donning and doffing but not adjustable in any way. May suffer from fogging since it’s close to the face and has limited ventilation.
Safety: Provides good coverage in relation to UK regulatory requirements because the landscape A4 sheet is very close to the face, but not very compatible with goggles/glasses or respirators. No protection from droplets falling over the top of the visor.
UK approval: It is not part of any CE marking application that we are aware of.
Sterilisation: Many of the processes tested by Prusa and verified by Czech laboratories may be used, but our understanding is that UK hospitals remain skeptical. This is because partially porous 3D printed materials are notoriously difficult to reliably sterilise -- it could be considered impractical. It should be possible for the visor itself to be just wiped down or cleaned with steam.