According to the U.S. Environmental Protection Agency, indoor air pollution is among the top five environmental health risks. One of the best ways to address this risk is to control or eliminate the source of pollutants and to ventilate a home with clean outdoor air.
High efficiency particulate air (HEPA) filters help provide this protection, and offer two important benefits at once: they trap and remove all but the most microscopic of potentially harmful particles in the air, and also this product allows the maximum amount of purified air to flow through to your home's atmosphere.
We recommend that you change your HEPA filters more often than standard filters.
We recommend the following filter product(s):
Lennox HEPA Filtration System

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Near-perfect filtration - up to 99.97% efficient in removing particles and bioaerosols down to 0.3 micron.
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Sealed bypass design - traps particles and prevents them from escaping.
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Easy integration - designed to work with Lennox® heating and cooling systems for total home comfort.