Kaeser Compressor Air Filters are high-efficiency intake elements specifically engineered to protect the Sigma Profile™ air-end. In a Kaeser system, the air filter is the primary defense against atmospheric dust and abrasive particles that could score the rotors or contaminate the Sigma Fluid lubricant. These filters are designed for high dust-holding capacity while maintaining a very low pressure drop, which is essential for the energy-efficient operation Kaeser is known for.