Has anyone heard of using positive pressure for ventilation in a bathroom?
We had confined space training at work last week and the instructor talked about ventilating a space with a bad atmosphere. He said to use positive pressure because it works better than negative. Then he asks if anyone has stayed in a hotel in California, claims that positive pressure is used for exhausting bathrooms and the mirrors never fog up. He also said that this is the way it's done in Europe too.
Anyone ever heard of this?