A MERV rating of between 6 and 13 generally meets the needs of most residences. "@type": "Answer", A position paper published by ASHRAE looked at the claim that particle filtration has health benefits. The "dirt" on the filters adds resistance. It's a nationally controlled and governed rating system established by ASHRAE and is the most widely used ratings for most US-based filter brands. Get more great content like this sent to your inbox. The pressure drop across the MERV-13 filter was 0.0274 inch of water column. MERV vs. MPR vs. FPR Rating Chart - Air Filters Delivered SIGN UP FOR EMAILGet more great content in your inbox. Always refer to your air handler manufacturers guide before changing your air filter. 52.1-1992 ASHRAE Test Procedure ATMOSPHERIC DUST SPOT EFFICIENCY 1. M 10 filters are easy on air blowers and fans. "text": "A filters pressure drop is measured twice, once when the filter is brand new and again when the filter has been in service and is loaded with trapped air pollutants. MERV 13 Pressure Drop Chart (Click to Zoom). Doing so could cause strain on your HVAC unit and could cause costly maintenance and repairs." },{ The good news is that institutions and other commercial/industrial facilities can take steps to lower their operating costs by adjusting their air filter strategy, namely by using higher quality filters to save money in the long run. "text": "The accepted pressure drop is different for each air conditioning or air handling system, and you should always refer to your manufacturers guide prior to inserting replacing your air filter to ensure you are using the appropriate filter. to the test filter, expressed in grams, and its average arrestance. PICKHVAC Terms of Use: Some of the products seen on our site are delivered through a relationship with outside suppliers like Networx.com, Google, and others. ", What are ionizers and other ozone generating air cleaners? The filter has a Galvanized steel frame, the filter dimensions are 20 x 19.75 x 3.75. Filters with higher MERV ratings trap small particles more effectively than filters with lower MERV ratings. That will definitely increase the pressure drop and place unwanted strain on your HVAC system. ", When You Shouldn't Use High MERV (12+) Filter for Furnace or AC These filters do a good job at removing harmful indoor air pollution. These ratings lie on a scale of 1 to 20. How often should I change my filter if I have a high MERV rating? "name": "Does air filter pressure drop change? depth MERV 13 filters are available with pressure drop characteristics comparable to or lower than some MERV 6 filters, staff also finds that a 2" filter depth is valuable in allowing filters to have airflow characteristics that are superior to a 1" filter, and may facilitate use of even higher MERV filters (such as the MERV 16 recommended by } This rating system reports how well the filter captures and holds dust. Frankly, that can happen with about any filter higher than a MERV 5 if it gets dirty and clogged. What if they cause too much pressure drop? MERV stands for Minimum Efficiency Reporting Value. That will result in more resistance to air passing through it. Is it a problem?
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