Respiratory supplies range from self-inflating AMBU bags to ventilators, nebulizers and peak air flow meters. Respiratory supplies are used for patients that are having difficulty breathing due to illness or any other type of respiratory diseases or condition. Respiratory products differ in size, style and types of treatment. Proper respiratory products allow more effective and efficient breathing as well as maximum comfort for the patient. The most common respiratory devices are medical ventilators, spirometers, peak air flow meters and nebulizers. These respiratory devices can be used in emergency rooms or they can be portable for home care. The respiratory devices can also be used by patients and physicians alike. All respiratory supplies are designed to ensure comfortable, normal breathing for patients needing them for any mild to severe case of breathing problems.