Merv 8 Air Filter
Merv 8 Air Filter
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MERV Rating - Understanding Your Furnace Filter’s Most Important Number
When shopping for furnace filters you may find yourself asking this peculiar question – “What’s a MERV?”
It’s not the name of a long-lost eccentric uncle or a talk show host you see on the retro TV station. It stands for "Minimum Efficiency Reporting Value."
A MERV rating is used to rate the ability of home furnace filters to remove airborne particles from the air as it passes through the filter. It is a standard used to measure the overall efficiency of a furnace filter and measures a filter's ability to remove particles from .30 to 10 microns in size. To give you an idea of the size of a micron, 100 microns is about the thickness of a piece of paper or a human hair.
The higher MERV rating the better performing a furnace filter us at the cleaning dirt, dust and grime particles from your air. The MERV rating needed for your furnace system comes down to your sensitivity to dust and other pollutants and air quality issues you face in your home.
A quality 8 MERV furnace filter will handle many of the larger air-borne particles that are common in most homes. However, if you or a loved one has respiratory issues it may be better to go with a 13 MERV filter. It is all based on personal preference and the conditions you face.
Here are examples of MERV ratings and the particles they filter:
- A MERV rating of 13 means the filter is 89-90% minimum efficient at capturing measured particles such as bacteria, tobacco smoke and particles that make you sneeze.
- A MERV rating of 11 means the filter is 80-85% minimum efficient at capturing measured particles such as humidifier dust, lead dust, milled flour, auto emissions and other fumes.
- A MERV rating of 8 means the filter is 60% minimum efficient at capturing measured particles such as mold spores, hair spray, fabric protector, dusting aids, cement dust and pet dander.
- Typical fiberglass throw-away filters are rated at a 4 MERV and below with a 6% minimum efficient at capturing the measured particles like pollen, sanding dust and large dust particles.
Which furnace filter MERV rating should you select for your home? No one can give you the definitive answer to which is best for your situation...not a scientist, engineer or HVAC contractor...it's your health we're talking about and your choice.
At Furnace Filters Made Easy, we suggest with a MERV rating of 8 or higher because your family's health is of critical importance. Avoid the cheap $2 fiberglass furnace filters found in hardware stores. They only capture large particles and allow respiratory irritants to continue circulating through your home.
You can find a helpful MERV ratings chart by visiting www.furnace-filters-made-easy.com.
About the Author
Dave Smith has been in the heating and cooling business for over 30 years. A second generation contractor, he provides a wealth of knowledge and common sense to all his customers. His latest venture is providing home air filters delivered directly to homes when they need change - http://www.Air-Conditioner-Filters-Made-Easy.com and http://www.Furnace-Filters-Made-Easy.com.
How to change the furnace and AC system air filter
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| 20x20x1 Pleated House/Home Air Filter Merv 8 Box of 12 | ![]() |
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US $39.99 | 8d 10h 57m |
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US $83.90 | 24d 8h 50m |
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US $93.00 | 10d 12h 22m |
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US $37.44 | 6d 7h 59m |
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US $63.87 | 2d 15h 47m |
| 20x25x1 Pleated House/Home Air Filter Merv 8 Box of 12 | ![]() |
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US $57.12 | 8d 8h 42m |
| 22 x 22 x 1 MERV8 Pleated Air / Furnace Filter - Qty.12 | ![]() |
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US $89.88 | 3d 16h 30m |
| 20X20X2 Pleated Home/House Air Filter Merv 8 Box of 6 | ![]() |
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US $37.14 | 20d 10h 18m |
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US $44.50 | 22d 12h 2m |
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US $44.50 | 22d 12h 2m |
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US $46.60 | 20d 10h |
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US $35.10 | 24d 18h 7m |
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US $51.99 | 13d 11h 11m |
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US $27.99 | 13d 20h 54m |
| 16x25x1 Pleated Home Air Filter Merv 8 Box of 12 | ![]() |
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US $55.56 | 4d 11h 31m |
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US $29.66 | 14d 12h 36m |
| 12x20x2 Pleated Air Filter Merv 8 Box of 6 | ![]() |
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US $30.68 | 26d 16h 12m |
| 18x22x2 Pleated Home/House Air Filter Merv 8 Box of 6 | ![]() |
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US $54.10 | 29d 10h 57m |
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US $41.22 | 29d 10h 55m |
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US $41.52 | 29d 10h 54m |
| 22x22x1 Pleated Home/House Air Filter Merv 8 Box of 12 | ![]() |
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US $99.48 | 29d 10h 51m |
| 12 x 12 x 1 MERV8 Pleated Air Filter - 1/2 Case of (6) | ![]() |
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US $28.88 | 22d 10h 32m |
| Air Handler 20x25x4, (5C437)Pleated Air Filter, MERV 8, Pack of 6 | ![]() |
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US $69.00 | 28d 17h 6m |
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US $56.11 | 28d 14h 30m |
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US $39.98 | 24d 12h 59m |
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US $59.94 | 22d 12h 2m |
| Furnace Filter Air Cleaner Filter 16x25x2 MERV 8 12Pack | ![]() |
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US $44.46 | 6d 7h 58m |
| 24x24x2 Pleated Air Filter Merv 8 Box of 6 | ![]() |
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US $43.77 | 26d 16h 12m |
| 20x24x2 Pleated Air Filter Merv 8 Box of 6 | ![]() |
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US $39.89 | 26d 16h 12m |
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US $31.16 | 26d 16h 12m |
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US $94.88 | 26d 15h 48m |
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US $41.50 | 22d 12h 2m |
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US $20.69 | 25d 21h 16m |
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US $57.77 | 11d 12h 45m |
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US $50.88 | 25d 6h 40m |
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US $50.88 | 25d 6h 39m |
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US $29.98 | 24d 13h 34m |
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Filed under Air Filters by on Jul 24th, 2010.

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