Choosing the Right Air Filter For Your Wheeling Home

Trying to select the right air filter for your the U.S. home can be a daunting experience. Which brand is best? Does the price reflect the quality? These are just a few of the questions that make purchasing air filters for your home mind-boggling. Let Service Experts Heating, Air Conditioning & Plumbing attempt to resolve your home air filter questions and allow you to continue enjoying the comfort of your home without concern.

Here’s a tried and true way to tell how efficient your current filter is (NOTE: Spare yourself a huge mess by conducting this experiment outside or with something below the filter to help keep things clear): Hold the filter horizontally, then using common table salt, begin to pour the salt through the filter and see the amount comes out the other side. If some or all the salt falls through the filter, then you can assume that the filter will let dust that same size flow through. You really should upgrade your filter to something more efficient.

There are 3 primary considerations when choosing a household air filter; Size, Material and MERV rating.

1) Filter Size

Unless you have the proper size home air filter, you will never enjoy the full effectiveness your system and filter can provide. Simply look at the label of your existing filter to see the proper measurements, or just measure it yourself. The majority of home air filters are 1” thick, but there are a number of standard width and height dimensions, and some systems have thicker filters.

2) Material & MERV Rating

MERV ratings are the efficiencies of the filter on a scale of 16. MERV stands for Minimum Efficiency Reporting Value. This number identifies for the user, under the least efficient conditions, how well the filter is designed to capture contaminants.

As a basic example, these are some typical MERV ratings and how they correspond to efficiencies. This is only a guide, so make sure you read the filter manufacturers’ information when buying specific filters.

Rating Average Filtration Efficiency

MERV 1-4 60-80%
Fiberglass, Disposable Panel, Washable metal/synthetic, self-charging (Passive)

MERV 5-8 80-95%
Pleated, Media panel, Cube

MERV 9-12 >95%
Extended pleated

MERV 13-16 >98%
Electronic

Be Careful About High MERV Ratings

While a higher MERV number may provide better filtration efficiency, it is extremely important to understand that too high a MERV filter may also require more to operate your heating and air conditioning system. The higher the MERV, the more restricted the air may flow through the system, and the harder the system may need to work. Your goal is to get the right balance between air flow, air filtration level and energy efficiency.

Consider it this way, the most efficient ‘filter’ would actually be a piece of plywood that prevents ALL contaminants and all the air from coming inside your the U.S. home. That’s maximum air filtration, but would also be like living in a box.

The default choice for most systems would be a MERV 6-8. A higher MERV filter should be used based upon the advice of your Service Experts Heating, Air Conditioning & Plumbing representative to ensure your system has the capability of moving the proper volume of air through higher efficiency filters. You normally do not want to give up energy-efficiency for filter efficiency; you want a balance of the two. However, if your family deals with allergies or respiratory problems and needs a high MERV air filter, consider a whole-home air filtration solution that will achieve your energy and filter efficiency needs.

Filtration has changed considerably over the past few years. Originally, home air filters were used in the furnace or air handler only to protect the comfort equipment itself. The story is different today. the U.S. area homeowners expect their air filter to save children from a wide variety of harmful pollutants, dust mites, and even prevent the need for dusting. Dare to dream!

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