# Air quality

Poor air quality may cause damage to the tool and reduce the performance.

- For optimum performance and maximum product life we recommend the use of compressed air with a maximum dew point of -5°C (23°F). We also recommend to install an Atlas Copco refrigeration type air dryer.

- Use a separate air filter which removes solid particles larger than 30 microns and more than 90% of liquid water. Install the filter as close as possible to the tool and prior to any other air preparation units to avoid pressure drop.

- Lubrication free tools are a better choice from an environmental perspective.

- Lubrication will shorten the life time of the turbine motor and once lubricated, you will need to continue with the lubrication.