The term AIR OBTAINER can be summarized as a device used to obtain air, with the four-letter word 'LUNG' being an appropriate solution. An air obtainer is a type of medical device used to help patients with breathing difficulties, such as those with asthma or COPD, to receive oxygen from a tank or other source. It is typically composed of a mask or mouthpiece connected to a tube that is attached to an oxygen tank. The device helps the patient to breathe in oxygen-rich air and exhale carbon dioxide.