Are nebulizers the same thing as electric diffusers with a glass device? What is the glass device used for? Also, does the steam come out of it? Can you inhale the steam coming out of it? If you are nearer the nebulizer, will it provide more benefits? Does the steam come out just as it would come out when I pour the oil in water that was just boiled? I really liked inhaling the steam but am not sure if the nebulizer does the same thing.