Which furnace filter is best?

Furnace air filters must be changed every three to six months, depending on your climate, the amount of pets that you have, the habits of the people living in your house (for example, if any of you smoke cigarettes), and the medical conditions of your family members (allergies, asthma). Once you have determined that it is time to change your furnace filter, the next step involves buying a new one.

There are so many different furnace filters available on the market that is can be tricky to choose the right one for your home. Picking the right one involves more than simply going to the home improvement or hardware store and buying the most expensive (or the cheapest) one. Here is what to consider when deciding between various furnace filters:

Size – Each furnace filter has three measurements: height, length and width. Make sure that you are buying on that is the right size for your furnace, or else it will not fit. How do you know what size you need? Either look at the current filter or find the manual for your furnace.

Efficiency Rating – Furnace filters are rated according the MERV scale. MERV stands for Minimum Efficiency Reporting Value. What that boils down to is: how many particles can the filter catch when the furnace or air conditioner are running? With the MERV scale, the higher the number, the better the filtering system is. 12 is as high as it goes, while electrostatic filters hover around an 8 or higher. Obviously, these filters will be the most expensive. If you need a cheaper filter, look for one rated a 6 (a standard pleated filter) or a 4 (a spun filter), but keep in mind that these less expensive and lower-rated filters will not catch as much dust and debris.

Since 1999, More Time for You, a Powell based business, has been providing house cleaning, handyman services, lawn care and snow removal services in Dublin, Powell and the surrounding areas.

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