The product is a 10 x 20 x 1 Standard Pleated Air Filter with a MERV rating of 8, featuring a filter performance rating of 4-5 (Good). This 3-pack of filters by HDX is designed to capture and trap dust mites, pollen, lint, and pet dander, making it ideal for use in furnaces, HVACs, wall vents, and ceiling vents. The filter media is synthetic, and the filter frame material is cardboard, providing an effective solution for improving indoor air quality for up to 3 months.