child boy using medical spray for breath

administration adrenergic aerosol agents airways allergic allergy antiasthmatic asthma asthmatic attack attacks blood blue boy breath bronchial bronchitis bronchoconstriction bronchodilating care child chronic copd dark disease equipment exerciseinduced exhale eyes focus green health healthcare high illness inhalation inhalational inhale inhaler kids large levels male mask medical medication medicine mouth nebulizer obstructive old portrait potassium puffer pulmonary pump respiratory selective side spacer spray therapy treatment tshirt using view years