If your blower will be exposed to corrosive process gases, there are special coatings and materials that can be added to your blower to extend its lifespan.
Click here to learn more about special options to protect your blower from corrosive gases
If you are concerned about rust inside the blower, this is most commonly caused by moisture and can be prevented by running the blower dry for at least 10 minutes prior to shutdown.
Click here to learn more about preventing rust inside your blower