Lennox 8" Replacement Carbon Inner-Filter, # X2678 mac2020 Genuine Lennox Part # X6667

Genuine Lennox Part # X6667

Honeywell FC100A1029

Maytag 918381

Nu-CALGON # 4621-11

This is very important because cellulose sustains mold growth

Lennox 8" Replacement Carbon Inner-Filter, # X2678 mac2020 Genuine Lennox Part # X6667Lennox 8" Replacement Carbon Inner Filter, # X2678 Carbon media is used to capture chemicals and odors, also referred to as V. O. C.s. Chemicals and odors cannot be captured with media type filters. Activated carbon attracts chemicals and odors and holds them. If air passes through the carbon filter before particulates are removed, the surface of the carbon quickly gets covered with particulates, rendering it ineffective at capturing chemicals and