An Inhaler or Puff or "Spray medication" is a hand-held portable device which delivers medication directly to your Pulmonary airways. A variety of asthma inhalers are available to help control Pulmonary symptoms in adults and children. There are many different types of inhaler. It is mainly used in the treatment of two Pulmonary Diseases ; asthma and Chronic Obstructive Pulmonary Disease (COPD). This section gives information on the various types of inhaler devices, and some general information about inhalers.