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Here is the full MERV rating chart: The most prevalent MERV ratings are MERV 4, 6, 8, 10, 12, 14, and 16: A Higher MERV rating automatically means a better filter. You can see from the MERV scale above that MERV 10 filter will filter out 85% of 3.0-10.0 μm particles. MERV 12 filter, for comparison, will filter out 90% of the same particles.
Minimum Efficiency Reporting Values, or MERVs, report a filter's ability to capture larger particles between 0.3 and 10 microns (µm). The rating is derived from a test method developed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) [see www.ashrae.org].
Here's what MERV ratings mean, and which rating you should aim for at your home. Which MERV-rated air filter should you be using? Here we list and explain everything you need to know...
Which MERV rating should you use for your home furnace filter? Compare MERV air filter ratings and understand what the scale means. [Free comparison chart]
Using an air filter with a MERV rating of about 5 to 8 is appropriate for most residential homes. MERV 5 – MERV 8 filters provide good filtration and will remove most pollen, mold spores, and dust mites. 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.
An air filter’s minimum efficiency reporting value (MERV) rating measures how effectively the filter stops dust and other contaminants from passing through the filter and into the air stream.
MERV ratings quantify how effectively air filters trap particles, with a scale from 1 to 16. Higher MERV ratings capture smaller particles. MERV ratings can trap particles between 0.3 to 10 microns. MERV air filters boost indoor air quality, and capture allergens, dust, mold spores, and bacteria.
Minimum Efficiency Reporting Values, or MERVs, report a filter's ability to capture larger particles between 0.3 and 10 microns (µm). The rating is derived from a test method developed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) [see www.ashrae.org].
Minimum Efficiency Reporting Values, or MERV, reports a filter's ability to capture particles. Filters with MERV-13 or higher ratings can trap smaller particles, including viruses. Many home HVAC systems will have a MERV-8 filter installed as the default.
MERV is the Minimum Efficiency Reporting Value, which is the scale designed by the American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters. Basically, the higher MERV rating indicates higher filtering performance.