Brand Name: AAF Flanders *Width: 20 in. *Height: 30 in. *Depth: 1 in. *Filter Material: Fiberglass *MERV Rating: 4 MERV*Pleated: No *Product Type: Air Filter *Electrostatic: No *Filters Dust/Lint: Yes *Number in Package: 1 pk *Filters Mold Spores: Yes *Filters Bacteria: Yes *Filters Smoke: Yes *Filters Viruses: No *Trimmable: Yes *Filters Pollen: Yes *Filter Frame Material: Cardboard *Filter Class: Class II *Metal Mesh Support: No *High Efficiency: Yes