noun
A system that uses air pressure to propel cylindrical containers through a network of tubes, often used in hospitals, banks, or large offices for transporting small items.
病院では、空気伝送管で検体を検査室に送る。
In hospitals, specimens are sent to the lab via pneumatic tubes.
Compound of 空気 (air) + 伝送 (transmission) + 管 (pipe).