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Lennox X2678 - HEPA-20 Replacement Charcoal Carbon Filter

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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:

  • Stage 1: 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.
  • Stage 2: HEPA - removes 99.97% of particulates down to 0.3 micron. Estimate life 2-5 years.
  • Stage 3: 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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Click Here for the Lennox HEPA Product Brochure

Click Here for Detailed Lennox HEPA Installation Instructions & Homeowner Manual

Click Here for Lennox HEPA Product Engineering Data Sheet


Brand Lennox
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