Filtration Accuracy (Microns):

• Diesel Filters: ≤5 microns.

• Gasoline Filters: 10–20 microns.

• Natural Gas Filters: 1–5 microns.

Beta Ratio:
A metric for filtration efficiency. For example, Beta 1000 indicates 99.9% removal of particles of a specific size. Diesel filters typically require Beta 75 (98.7% efficiency) or higher.

Flow Rate & Pressure Drop:

• Flow rate must match engine requirements (e.g., ≥100 L/h for diesel vehicles).

• Excessive pressure drop may lead to insufficient fuel supply.

Material Innovations:

• Nano-fiber filter paper (e.g., gradient nano-fiber composite) achieves 99.95% efficiency at 0.3 microns, surpassing traditional paper elements.

• Metal mesh filters are durable but costly, commonly used in heavy machinery.