Actual size: 15-1/2 x 24-1/2 x 3/4, nominal size: 16x25x1. filtration rating: merv 11. comparable to mpr rating 1000 to 1200, or fpr 7 rating. effectively captures and blocks small particles such as allergens, smog, smoke, lint, mold, bacteria, dust, pet dander, and pollen. utilized for healthier living environments.
