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Lennox X7935 MERV 16 Replacement Filter is 20" x 20" x 5" and will remove a minimum of 95% of circulated dust and other particles from 0.3 micron and up and a minimum of 95% of mold spores and other bioaerosols from 0.3 micron and up.
The Lennox X7935 filter is the highest rated filter available for residential systems and will slide out for quick and easy replacement. The Lennox X7935 MERV 16 filter lasts up to one year.

As with any filtration product, replacement life cycle depends on the individual conditions and needs of your home.
The Lennox X7935 is compatible with any HVAC systemÛno additional power source needed