Filter, regulator, and lubricator (FRL) compressed air systems are used to deliver clean air at a fixed pressure and lubricated (if needed) to ensure proper pneumatic component operation and increase their operation lifetime. The air supplied by compressors is oftentimes contaminated, overpressurized, and non-lubricated, meaning that an FRL unit is required to prevent damage to equipment. Filters, regulators, and lubricators can be bought individually or as a package (as seen in Figure 1), depending on what is needed to ensure the proper air specifications are being met for downstream equipment. It is recommended to install these devices if you:

• Use pneumatic tools and equipment;
• Are installing an HVAC system;
• Require clean air to be delivered to your facility or workplace;
• Require compliance to ISO, OSHA, ASHRAE, or other air quality standards;
• Improve the service life, safety, and reliability of your air system.