Mini Air Filter For Air Polisher

Even though it is the smallest filter in the industry, this air filter prevents drain and water from entering into the air tool.
Q1.Although an air filter is provided with Compressor, does it need another air filter?
A1. Unfortunately the provided air filter can not remove Drain completely.
Compressed air contains not only Drain but also water and oil which are failure cause. We recommended using air filter.
Q2.How long is there difference between using air filter and using without air filter?
A2.We search a cause to repair in our company however we have never had a breakdown due to defective parts. Most cases come from added Drain or occurred rusty of Bearing. Although we have never searched the length of the extended duration, using air filter can for sure prevent malfunction
of Bearing.