The fumes are aromatic phenols, which are very detectable by smell in very small quantifies, and similar materials are likely around you all the time in your environment, both natural and man-made. Similar compounds exist in the spices you bake with, cheese, decaying vegetables, your garbage can, coffee, smoked sausages and along the forest paths as phenolic compounds in pine or eucalyptuses decay.
Acetic acid found in stop bath is in concentrations higher than in table vinegar but still far from concentrated.
Everything else are either in such small quantities, or are used in food processing at similar concentrations anyway and are thought to be safe. In fact NaBr is used in parts of a the world as a seizure medication at rates up to 1g/day.
If you're really worried about it, install an air conditioner in the bathroom window and run in reverse, or rig up some kind of hood and use a fan with regular air filters or louvers to block out any stray light. In the least use a baffel. But as others have said, I wouldn't worry too much about the chemicals provided this is a hobby and you are not in there more than 30% your working day, every day for weeks on end.