Minimum Efficiency Reporting Value (MERV) is a standard that rates the overall effectiveness of air filters. Ideal for standard and residential commercial use; Designed to last 90 days. Forgetting to change out a more efficient filter and letting it clog up could stop the airflow of your HVAC system, possibly resulting in significant damage and less than cheap repairs. 92 The higher the MERV rating on a filter, the fewer dust particles and other contaminants can pass through it. To determine resistance, filters use the MERV rating system. A strand of human hair is estimated to be 75 to 100 microns, so some of these particles can only be seen using a microscope. Minimum Efficiency Reporting Value, commonly known as MERV, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to report the effectiveness of air filters.. Upgrade to MERV 8 filters from your standard disposable filter at an … MERV-8 filter captures the majority of “larger” airborne particles after the air blew into the machine. Economical MERV Rated and Activated Carbon Filter with Expanded Metal Backing. But to use a high-MERV filter, you have to avoid the unintended consequences I mentioned above. Made from 100% synthetic media, our MERV 8 pleated filters can capture airborne allergens and particles between 3-10 microns in size – a great improvement over standard disposable filters. Why is that? The bottom line is, the higher the MERV rating, the smaller the pores are for air to flow through , causing more resistance in airflow than your system may be designed to manage. MERV can help you choose a filter for filtering contaminants that fall within specific particle size ranges. Copyright © 2010 - 2019, Air Filters for Clean Air. These allergens include pollen, pet dander, lint and dust mites. The higher the MERV rating on a filter, the fewer dust particles and other contaminants that can pass through it. Our filters are available in three grades – Merv 8, Merv 11, and Merv 13. MERV 14-20 are typically found in hospital and general surgery settings. In fact, the MERV 8 filter works up to 20 times more effectively and lasts 3 times longer than ordinary fiberglass filters. This is an industry standard rating system. If members of your family have those health concerns, we recommend a MERV 11 air filter—especially in the spring and summer seasons. Particle density in the test duct is evaluated before and after it passes through the filter. MERV 1 to 4 – effective at controlling larger particles such as, sanding dust, spray paint dust, lint and carpet fibers. © 2016 Quality Air Filters Privacy Policy | Terms of Use, All Filter Sizes Available (Including Custom Sizes), We offer filtration grades of Merv 8, Merv 11 and Merv 13, Our Air Filters Are compatible with All AC brands and models, Our Air Filters Are comparable to Filtrete Filters, Free Shipping - Air Filters Delivered to Your Door, Solve Your Air Filters Needs Without Leaving the House. Using MERV 5-8 filters will keep your HVAC system more efficient than using higher rated filters, as long as you replace your filters regularly. MERV ratings allow you to make comparisons between filters to determine which is most efficient for your specific application with the goal of eliminating nuisance pollutants in a residence or workplace. A MERV 8 air filter is efficient at trapping a majority of indoor particulates that could debilitate those with asthma and allergies, or even cause long-term respiratory problems. The following chart describes each MERV value in the rating system: Typical applications for the major MERV value ranges are: MERV 1 – 4. For Merv 8, 11 and 13 filters, we recommend that you change your filter at least every 3 months, however changing your filter every 2 months provides better filtration which provides healthier and cleaner air in your home. Understanding how MERV ratings work can help you understand why MERV 8-rated filters are so popular in the U.S. ASHRAE created the MERV system 1987 as part of their ongoing process to update their filter testing standard that was initially published in 1968. An Economical MERV Rated Filter. Camfil is the world leader in air filtration and clean air solutions. The range is from 1 (lowest efficiency) to 20 (highest efficiency). According to the National Air Filtration Association, there are 16 MERV values, from 1 to 16, with the tested filter efficiency increasing as the MERV number increases. Another factor driving the popularity of MERV 8 filters is that they are inexpensive and easily serviced. . What is a Merv rating? The pressure drop was rated at .14” w.g. Save 5% more with Subscribe & Save. Use this rating system compare filters made by different manufacturers. Box Filter- Rigid Style Cartridge Filters 6 to 12" deep m ay use lofted or paper media. For example, a MERV 8 filter could last up to three months in one circumstance but a MERV 13 filter would last for one to two months in the same scenario. That is why we only use raw materials from the USA and manufacture our air filters in the USA. MERV 8 filters are the lowest we recommend for homeowners. 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