Thanks for the responses....
My OHS has said, "as per HSE directives the best way to stop a problem is to remove the Hazard" well.... thats a no go for the time being. They also suggested a prescription anti histimine of 120mg per day!!! seems an awful lot, so i dont want to go that route.
I have laminate floors, which is good apparently, gonna get the other half to wash the cat. Making sure she doesn't go in the bedroom at all (the cat that is

), and have just purchased a fancy HEPA air filter. Lets see if this helps things at all.
Interesting fact i found doing my research, is that the cat allergen is actually in their saliva, not the fur as i believe is the common thought. As they say, you learn something new evry day!