Ok, this might be a really stupid comment---but I'm just trying to help 
I don't have environmental allergies, so I know nothing about them---but can you take something like Benadryl before going into the room so that in case there is something your body is allergic to, you won't get the allergy??

I don't have environmental allergies, so I know nothing about them---but can you take something like Benadryl before going into the room so that in case there is something your body is allergic to, you won't get the allergy??