A nebulizer changes medication from a liquid to a mist so that it can be more easily inhaled into the lungs. Nebulizers are particularly effective in delivering asthma medications to infants and small children and to anyone who has difficulty using an asthma inhaler. It is also convenient when a large dose of an inhaled medication is needed. Nebulized therapy is often called a "breathing treatment." A variety of medications - both for immediate relief and maintenance of asthma symptoms are available for use with the SU99 Elite™ High Frequency Ultrasonic Nebulizer and NexGen™ Circuits to provide a closed system for optimal results.