A nebulizer turns liquid into a fine mist that is breathed into the airways. Use it only with the solution and dose your doctor prescribes. There are two common types: compressor nebulizers are durable with an even mist and suit home use; ultrasonic or mesh models are compact, quiet and portable. Choose one with masks for both adults and children, easy-to-replace tubing and low noise if your child uses it while asleep. Wash and air-dry the medicine cup after every use.