1. If you dream that you're deeply breathing clean air, it's a sign that successes are coming soon. If the air is polluted, it's a warning to postpone making important decisions by a few days because right now you can't be objective..
2. If you dream that you're breathing heavily, with difficulty - prepare for problems and difficulties at the workplace. If you dream that you're breathing easily - you'll avoid danger. If you hear your own breathing in a dream - find a doctor, your health is in danger..