October 20, 2020

As a homeowner, you want to make sure you and your family are comfortable year-round, and this starts with maintaining your heating and AC system. For your HVAC system to function, it needs a filter that can capture pollutants before they enter the furnace or air handler and wreak havoc. Not all filters are created equal, though.

Differences of Surface Area

Some filters can capture more pollutants, as one can easily see after comparing the two most common types of filters that suit the average home: fiberglass filters and pleated filters. The former can last 30 days while the latter, which have folds in them to increase the surface area, only need replacing after 90 days. Of course, you’ll have to replace pleated filters earlier if you have smokers or pets in your home.

Consider the MERV Rating

Still, it’s not all about surface area. Fiberglass filters can capture lint and large dust and dirt particles, but little else. Pleated filters, on the other hand, can prevent the circulation of smaller pollutants like pet dander and mold spores. You can know what filters capture what particles by referring to the MERV (Minimum Efficiency Reporting Value) rating.

The MERV rating scale goes from 1 to 16 with fiberglass filters falling between 1-4 and pleated filters falling between 5-8. Technically, pleated filters are sufficient for most homes. Commercial buildings and hospitals will use filters rated 9 and above.

Some Filters Are Washable

Homeowners can, however, opt for washable, reusable filters like electrostatic filters. While the initial cost will be higher, the fact is that these filters are supposed to last as long as the HVAC system itself.

Highly Experienced Local Company

For over a century, Cass County Heating, Inc has been providing the people of Fargo, ND, with professional heating and cooling work. Maintenance is a big part of what we do, so if you want your filters to be replaced or cleaned on a regular basis, among other things, schedule us for a visit. Call today for more information.

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