The primary<unk>  of asthma includes efforts to reduce all personal exposure to tobacco smoke, including passive smoke exposure, occupational dusts and chemicals and other indoor and outdoor air pollutants linked to asthma.
Asthma primary prevention
Asthma secondary prevention
Chronic bronchitis primary prevention
Chronic bronchitis secondary prevention
Occupational asthma primary prevention
Chronic obstructive pulmonary disease secondary prevention
Idiopathic pulmonary fibrosis primary prevention
Chronic obstructive pulmonary disease primary prevention