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What Is a MERV Rating and How Will It Help Me Improve My Home’s Air Quality?
Wednesday, October 12, 2016
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Maintenance agreements are convenient. They’re cost effective. Now, discover how they also benefit your indoor air quality.

Your home’s heating and cooling equipment likely has a filter. Most homeowners buy the cheapest filters available and then complain when their units need extra cleaning and when the air in their homes is so dusty. Do you realize the least expensive filters on the market aren’t effective enough to filter out anything but the largest pieces of dirt and debris?

A Word on MERV Ratings

Every filter on the market is evaluated for filtering efficiency. They’re labeled with a MERV rating, ranging from 1 to 20. The cheapest filters at the store usually rank a 4 or 5, but that’s not actually enough to filter much from the air. It will keep sand from entering your system, but it won’t stop dust, mold and other contaminants from being circulated throughout your home.

What MERV Do You Need?

Most homes don’t need mega-filtration power, but you still want something enough to keep mold spores and household chemicals from spreading from room to room. This requires a MERV rating of at least 7. However, there are homes that have special needs. For instance, a MERV rating of 14 is needed to filter out tobacco smoke.

Once you get above a MERV rating of 9, you often need special equipment to hold the filters. These units can also be reusable with metal, plastic, or mesh panels that need periodic cleaning. During your seasonal maintenance visit, talk to your HVAC professional about possible upgrades.

Enroll in one of our maintenance agreements today. Get the advantage of regular service calls and find out about new equipment and accessories as soon as they’re available. Contact G+S Energy Today!

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