Brand Name: Ace *Pleated: Yes *Product Type: Air Filter *Height: 20 in. *Width: 20 in. *Length: 1 in. *Minimum Efficiency Reporting Value: 8 MERV *Filters Dust: Yes *Filters Mold: Yes *Filters Pollen: Yes *Media Type: Cotton *Filters Bacteria: Yes *Clean Air *Removes harmful allergens, pet dander, dust mite debris *Optimal airflow *Designed to trap particles down to 3 microns *Discovery ACC, CON, NBR, SUP, EXP