Is there any risk from short-term exposure to ethanol?

Hello doctor,

I want to know if there is a short-term health risk due to the inhalation of 70 % ethanol and isopropyl alcohol. I do not mean the hand wash, but the pure liquid, which I use for electronic repairing and cleaning. I almost always use an organic vapor mask or gas mask. If I work long hours, I use activated-carbon filter to purify the air. But, I sometimes think I am over cautious, and that makes people around me more scared of working with it. If I just want to use the ethanol to clean something for two to five minutes, should I still need to use the mask? I am only talking about inhalation as I always use gloves and eye protection.