Trying to select the right air filter for your Saint Charles home can be a daunting experience. What’s the best one? Does the price reflect the quality? These are just two of many of the questions that make selecting home air filters so mind-boggling. Let Golden Seal Service Experts Heating & Air Conditioning attempt to resolve your home air filter questions and allow you to continue enjoying the comfort of your home without concern.
Here’s an easy way to tell how efficient your old filter is (NOTE: Do this outdoors or with something below the filter so you don’t end up with a mess): Set the filter horizontally, then using standard table salt, begin to pour the salt through the filter then see the quantity that 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 particles of similar size pass through. You really should upgrade your filter to higher quality filter that is 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 dimensions, or just measure it yourself. Typically home air filters are 1” thick, but there are a numerous standard width and height dimensions, and some systems have thicker filters.
2) Material & MERV Rating
Filter efficiencies are given a number from 1-16 called the MERV rating. 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.
To explain MERV ratings more impactfully, these are some usual MERV ratings and how they connect 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%
MERV 13-16 >98%
Be Careful About High MERV Ratings
While a higher MERV number may ensure better filtration efficiency, it is critical to understand that too high a MERV filter may also require more to operate your furnace and AC 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 aim is to get the right balance between air flow, air filtration level and energy efficiency.
Look at it this way, the most efficient ‘filter’ would equivalent to a piece of plywood that stops ALL contaminants and all the air from coming inside your Saint Charles 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 on the advice of your Golden Seal Service Experts Heating & Air Conditioning representative to confirm your system has the capability of moving the suitable volume of air through higher efficiency filters. You probably do not want to sacrifice 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 meet your energy and filter efficiency needs.
Filtration has changed greatly over the past several years. Originally, home air filters were used in the furnace or air handler only to safeguard the comfort equipment itself. Today it’s a whole new ballgame. Saint Charles area homeowners expect their air filter to save kids from a a growing list of harmful pollutants, dust mites, and even prevent the need for dusting. Dare to dream!