A BBC report this morning showcased an initiative where you are able to upload a 3D scan of your face, submit it to a website that will then generate a "file" enabling you to get your own personalised face mask 3D printed locally.
The masks take standard sized filters and are said to be much more comfortable for those having to wear them for extended periods, also local 3D printing would costs about £5 (uk)
After seeing all the teams wearing generic masks with their logos on I would have thought maybe they would go down this route too.
bbc.co.uk/news/av......
https://www.mensuramask.com/ for the website that generates the 3D file