Microparticle Performance Rating (MPR)

Micro-Particle Performance Rating is a metric developed by 3M Filtrete indicating how effectively a filter can capture particles between 0.3 and 1 micron in size. MPR is a metric indicating good, better and best, with filters containing the highest MPR (1900 or greater) being the most effective at filtering airborne particles.

To find the air filter that's right for your home try our Air Filter Finder. Reduce contaminants in your home's air with an air filter from our wide assortment of sizes and performance ratings!

Basic: MPR 300

  • Traps lint, household dust, pollen

Good: MPR 600

  • Traps lint, household dust, pollen, dust mite debris

Better: MPR 1000

  • Traps lint, household dust, pollen, dust mite debris, mold spores, pet dander, smog, smoke

Best: MPR 1500

  • Traps lint, household dust, pollen, dust mite debris, mold spores, pet dander, smog, smoke, bacteria, viruses

Maximum: MPR 1900

  • Traps lint, household dust, pollen, dust mite debris, mold spores, pet dander, smog, smoke, bacteria, viruses, odors