How to Choose a Furnace Filter

The air inside of your home is estimated to be 1-3x worse than the air outdoors. This is true of all homes. Your furnace is one of the main culprits for these pollutants.

The furnace filter is often overlooked but if you purchase the right one it can provide many benefits to your home.

There are basic and premium options to choose from and some are able to remove allergens and others protect the furnace itself. Which furnace filter is the right one for your home?

Before we explain the different filters available, we must note how important it is to change your furnace filter at least two or three times a year.

If you do not change your filter enough it will clog and overwork the furnace and do nothing to improve the air quality of your home. This will increase your energy bill too. You must be diligent about replacing furnace filters.

Let’s review the options available for furnace filters:

First, familiarize yourself with the MERV (Minimum Efficiency Reporting Value) rating scale. The scale indicates how good a filter is at removing small particles from the air. The highest rating is 20 although that is often reserved for commercial use and not residential.

Fiberglass Filter

The most basic option of furnace filter is a fiberglass frame. This filter has a MERV rating of 4 and it is very good at trapping large particles and preventing them from entering the air in your home. This is the most popular furnace filter but there are better options available for purchase.

Disposable Pleated Filter

Disposable pleated filters are excellent for anyone who suffers from allergies. These filters fit in the same slot as a fiberglass filter but are much more efficient in trapping particles and preserving air quality. The MERV rating for a disposable pleated furnace filter can range anywhere from 8-15. You can choose from the standard level, mid level or ultimate level depending on how much you want to spend and how important it is for you to improve the air quality in your home.

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