Have you checked your air filter lately? Now that we are hearing the furnace kick in more often we need to check the filter more often. Afterall, the warm air you appreciate during the winter is also the air you are breathing coming through that furnace filter.
Reliance Home Comfort provides a great overview of what type of filter is right for you when it's time to replace it.
The Reliance people say, an air filter’s MERV (Minimum Efficiency Reporting Value) indicates the filter’s ability to capture airborne particles while air is flowing through your heating or cooling system. For residential purposes, MERV ratings range from 1 to 16, with the low-end filters only capturing the largest particles and the higher MERV ratings capturing increasingly smaller particulates.
You can get the full story on filters here, but perhaps this blog was meant for your eyes as a reminder to check your furnace filter.
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