A nebulizer is a machine that turns liquid medicine into a mist you can breathe in. Nebulizer for infants For children below 2 years of age, the child specialists often recommend saline solution through nebulizers. This will help avoid the concentration of sputum and also reduce inflammation of lung vessels. Thus it is safe for child health. Watch Dr. A. Mohammed Fazil of Kauvery Hospital, one of the best Paediatricians in Salem, discuss whether nebulizers can be used for children under 2 years old.