The HEART® (High Output Extended Aerosol Respiratory Therapy) continuous nebulizer was the defining first-to-market device in the now well-established realm of continuous nebulization of beta-agonist medications for asthma, COPD and acute bronchospasm. The HEART continuous nebulizer defined the paradigm and then Westmed expanded it by adding a complete family of continuous nebulizers for specific aerosol delivery objectives and circumstances.