The Tee in an air sampling tube is a fitting that is used to bifurcate the gas flow path in multiple directions in an air sampling system. These fittings are often used where multiple locations or parameters need to be monitored simultaneously, by which a main sampling tube can be split into two or more branches to enable simultaneous collection of air samples from different locations. Tee's are generally made from durable materials such as stainless steel or plastic to ensure their stability and durability in a variety of environments. During installation, care needs to be taken to ensure that all connections are well sealed to prevent airflow leakage from affecting the sampling results. The use of a Tee can increase the flexibility and functionality of an air sampling system, making it easier to conduct multi-point monitoring or perform complex gas analysis experiments in a single system. However, when designing and installing an air sampling system with a Tee, it is i…