In medicine, a<unk>  is a device used to administer medication to people in forms of a liquid mist to the airways. It is commonly used in treating cystic fibrosis, asthma, and other respiratory diseases.
Also called "atomizers", they pump air or oxygen through a liquid medicine to turn it into a vapor, which is then inhaled by the patient.
As a general rule, doctors generally prefer to prescribe inhalers for their patients, not only because these are cheaper and more portable, but are often less potent and carry less risk of side effects.<unk> s, for that reason, are usually reserved only for serious cases of respiratory disease, or severe attacks.
Newer, compact ultrasonic<unk> s are also available.  These<unk> s, such as the Omron MicroAir series, use vibrating micro-mesh to produce the vapor.<unk> s of this variety are rather expensive, and the micro-mesh is very delicate and sensitive to dust and debris.
Nebulizer
Inhaler
Metered-dose inhaler
Asthma spacer
Deodorant
Nasal spray
Alcohol rub
Combivent