Amazon.com: Honeywell HEPA Air Purifier Filter R, 3-Pack for HPA 100/200/300 and 5000 Series - Airborne Allergen Air Filter Targets Wildfire/Smoke, Pollen, Pet Dander, and Dust : Everything Else
Replaceable filter cartridge Honeywell DoubleSpin with O-ring, 100 µM, for sizes R 1 - R 1 1/4 | Bola Systems
Honeywell Replacement Humidifier Wick Filter C at Menards®