🛠An air lubricator provides needed lubrication to moving components in a pneumatic tool. 

🛠Without lubrication, most air tools will quickly stop working and likely take damage. 

🛠However, most modern pneumatic systems are self-lubricating, meaning they don't require an individual lubricating unit. 

🛠Therefore, it is important to know the system and component requirements to see if an individual lubricating unit is needed. 

🛠A pneumatic system can use just a compressed air lubricator or a lubricator that is part of a filter, regulator, lubricator (FRL) unit.