16x20 Honeywell Post Filter 50000293-001 (2 Pack) Captures up to 98% of particles between 3 and 10 microns in size - cat dander, pollen and dust. Enhances air cleaners filtration efficiency in capturing bacteria, smoke, particles, mold spores and other fungi. Antimicrobial coating protects against bact... Manufacturer: Honeywell
$40.99
16x20x1 Filtrete 500 Dust and Pollen Refillable Filter by 3M + 3 Refill Filters Captures large, airborne allergens like mold spores and large dust particles. No unnecessary antimicrobial chemicals added. Filtrete filtering material will not support the growth of bacteria, mold, mildew or fungi in normal use. Manufacturer: 3M