Vein: A blood vessel that carries blood that is low in oxygen content from the body back t... See the entire definition of Vein Viral: Of or pertaining to a virus.
This means that breathing low concentrations of freon from a leaking refrigerator or air conditioner over a long period of time is unlikely to have a cumulative effect, and thus few, if any, long term health effects.
If you need to add refrigerant you have a leak that needs to be repaired.     In theory you should nâ¦ever have to add freon. but there can be some residual loss. maybe after five to ten years. 24 people found this useful.