I don't want to start a bun fight!! ..... but thought this might be useful info to folks who spray 2k occasionally
https://www.gasmask-respirators.co.uk/2-pack-isocyanate-paint-spraying-respirator-packs-20-c.asp
https://www.gasmask-respirators.co.uk/2-pack-isocyanate-paint-spraying-respirator-packs-20-c.asp