Like this one By Honeywell In this price range (around $23 to $143) $23 compare prices at 6 sellers Accumulair Diamond Air Filter 14x24x1 - 4 pack - FD14X24-4 The Accumulair Diamond air filter is made with electrostatically charged filter media that captures airborne allergens smaller than 1 micron, such as bacteria, particles that carry viruses, pollen, pet dander, mold spores and fine dust.MERV