How bad is inhaling hairspray?

Answer 1

Any foreign substance can be dangerous when inhaled in large amounts. Our body have defence mechanisms to help protect the lungs against that kind of debris. The little hair in our noses is there to filter the air we breath in (we should breath in our noses all the time). The snot in the nose and mucus in the lungs is there to catch the debris that gets past the nose hair. Much like fly paper. Then we cough it up or sneeze it out.