Coway Airmega ProX True HEPA Air Purifier (upto 2,126 sq. ft.) for medium-large spaces - Home, Offce, Stores, and Restaurants AP-3522F - The Home Depot
Amazon.com: AP-1512HH Air Purifier Replacement Filter Set for Coway Airmega AP-1512HH and and Airmega 200M air Purifier, 2 HEPA and 6 Carbon Filters, Compared to Part #3304899 : Home & Kitchen
Atomic Compatible Replacement Filter for Coway 3304899 - Atomic Filters
Amazon.com: True HEPA AP-1512HH Replacement Filter for AP-1512HH Air Purifier 3304899 with 2 Carbon Filters : Home & Kitchen
Coway Airmega 300 Replacement Max2 Filter Set for Air Purifier – Cowaymega