Wrong disability you have discriminated end of
Utter nonsense, the disability is irrelevant. Anything which prevents you from wearing a mask means you cannot work safely on a building site as you're not able to wear appropriate PPE.
I can prove it if you like?
I'll give you the address, you turn up and claim an exemption. I'll tell you to fcuk off, and you can then ring the Police and a solicitor.
Genuine offer, any day you like.