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The activated charcoal filters absorb odors caused by cigarette, pipe or cigar smoke, mold, mildew, etc.
Filters are made of permanent polyester fibers coated with activated charcoal.
Each filter is individually poly-wrapped to ensure maximum absorption and durability when installed. The activated charcoal is effective for up to six months. After that, replace with another charcoal filter or wash and reuse the filter just as you would a regular Amana® PTAC filter.