MERV stands for “Minimum Efficiency Reporting Value” and is the only standardized filter rating system established by the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE) in 1987. It measures how effectively a filter prevents contaminants and other particles from entering the home through the HVAC system. A Merv 11 filter is more efficient than a MERV 8 filter because it can capture smaller particles, such as pet dander, dust mites, self-emissions, and dust that damages the lungs. This makes it a great option for pet owners or those looking for improved air quality. The MERV 11 filter is best for pet owners and people living with certain health conditions, such as mild allergies and mild asthma. It offers more filtration for cleaner air than the MERV 8, but it doesn't filter as much as the MERV 13 (the highest option suggested for residential use).
Anything higher than a MERV 11 is designed for commercial or domestic homes with family members suffering from respiratory problems. MERV 11 filters trap 65 to 79 percent of the average particles 1.0 to 3.0 microns in size, with an average particle size efficiency of 85 percent or better. This rating is more efficient than MERV 8 and 11 with the ability to filter even more allergens from the air. MERV 11 air filters block at least 65% to 79% of particles in the air in the 1.0 to 3.0 micron size range. Filter King offers a hassle-free MERV 11 air filter subscription service, so you never forget to replace your air filters. This ensures that your home's air quality remains at its best and that your HVAC unit continues to operate efficiently.
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