Vornado AC300/500 Activated Carbon Pre-filter 2-Pack: MD1-0023
Comes with two activated carbon filters. This activated coconut carbon pre-filter extends the life of the HEPA filter by trapping large particles before they reach the HEPA filter. The activated carbon also helps neutralize odors and organic compounds. There is no need to clean the carbon pre-filter, simply replace every 4-6 months! No tools are required to change the filter.