Product details list the material as Polypropylene and the filter type as HEPA.
The product listings recommend replacing the humidifier filter every 6 months.
The product details list pollen, odors, and smog among the allergens/contaminants the filters capture.
Product descriptions include two different dimension entries: 8.25 x 25.50 x 1 inches in one place, and 8.25 inches (H) x 3 inches (W) x 25.5 inches (D) in a bullet entry.
The listings show package options with either one filter or a two-filter pack.
Weight entries differ across listings: one shows 1 ounce and another shows 0.5 ounce.
