Absolute vs Nominal Micron Filter Rating: The Critical Difference That Could Be Destroying Your Equipment
Absolute micron rating guarantees that 99.98% of particles larger than the specified size are removed, while nominal rating typically captures only 85-95% of a of particles at the stated size – meaning a nominal 5-micron filter may allow particles up to 15-20 microns to pass through, potentially damaging sensitive pneumatic components.