Face shields arrived.

Easy to put together as the glasses are separate to shield, peel of protective film from both sides of shield, bit fiddly using fastener on glasses frame as you have to line up holes. Shields come flat and you have to bend them to fit on glasses frame. Also bit fragile if you try to fold arms on glasses with shield on. So a bit bulky when together and not good for in your handbag.

Fits over prescription glasses well but will disturb them when taking off so a bit of care needed. Didn't steam up during trials.

Nice clear shield, nice and light, glasses fit well and comfortable. Easy enough to remove shield from glasses (reverse order as how to attach). Bit of antibac spray to clean with cloth.
These are what I got, based in Rochdale:
Free delivery and returns on all eligible orders. Shop True Face Shield (5 Pack) Full Face Visor Glasses Protection Mask PPE Transparent Clear Plastic UK.
www.amazon.co.uk
Use the code for 5% discount, just follow on screen instructions for it.