Remove victim to fresh air and keep at rest in a position comfortable for breathing. If
not breathing, if breathing is irregular or if respiratory arrest occurs, provide artificial
respiration or oxygen by trained personnel. It may be dangerous to the person providing
aid to give mouth-to-mouth resuscitation. Get medical attention. If unconscious, place
in recovery position and get medical attention immediately. Maintain an open airway.
Loosen tight clothing such as a collar, tie, belt or waistband.