- Specifications
- Description
Lennox X2678 HEPA-20 Replacement Charcoal Carbon Filter
Use for 3rd-stage filtration for removing odors. This is the inner carbon filter canister that wraps around the HEPA cartridge.
Three-Stage Filtration Process:
- Pre-filter - an inexpensive pre-filter to remove larger particulates from the air. This is important to prolong the life of the HEPA filter. Rated MERV 6. Estimate life - 12 months.
- HEPA - removes 99.97% of particulates down to 0.3 micron. Estimate life 2-5 years.
- Carbon - 1/2 in. (13 mm) thick carbon filter for removing chemicals and odors from the air. Replace filter when it no longer seems to capture odors, or once every 3 months. Optional carbon canister can be used in place of the carbon filter. Estimated life of the carbon canister is 6 months.
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