Media filtration solutions can filter from which range?

• A. 130 micron to 1 micron
• B. 75 micron
• C. 1 micron
• D. 20-400 micron

Answer: (A)

Media filtration works by forcing water through a bed of granular media, which traps particles as they pass through. This depth filtration can capture a wide range of sizes: larger particles are stopped by the bigger pores near the surface, while smaller particles are removed deeper in the bed as flow paths become more tortuous. Because of this, a well-designed media filtration system can handle particles from relatively coarse sizes down to very fine ones—roughly starting around 130 microns and going down to about 1 micron. That broad spectrum best reflects what media filtration can achieve, whereas the other options lock in on narrower ranges or exclude either the larger or the finest particles. Keep in mind that the exact range depends on the media grade, bed depth, flow rate, and design.