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- Minimum_efficiency_reporting_value abstract "Minimum efficiency reporting value, commonly known as MERV rating, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters. The scale "represents a quantum leap in the precision and accuracy of air-cleaner ratings" and allows for improved health, reduced cost and energy efficiency in heating, ventilation and air conditioning (HVAC) design. For example, a HEPA filter is often impractical in central HVAC systems due to the large pressure drop the dense filter material causes. Experiments indicate that less obstructive, medium-efficiency filters of MERV 7 to 13 are almost as effective as true HEPA filters at removing allergens, with much lower associated system and operating costs.The scale is designed to represent the worst case performance of a filter when dealing with particles in the range of 0.3 to 10 micrometers. The MERV rating is from 1 to 16. Higher MERV ratings correspond to a greater percentage of particles captured on each pass, with a MERV 16 filter capturing more than 95% of particles over the full range.Below is a table grouping MERV ratings by particle size:While the smallest MERV value in each row has no minimum requirement for filtering that row's particle size, it does have stricter requirements for all larger particle sizes than any smaller MERV value. For example, MERV 13 the "0.3–1.0 μm" row has no minimum requirement for removing 0.3–1.0 μm particles (the standard specifies "<75%") but has higher minimum removal percentages of 1.0–3.0 μm, 3.0–10.0 μm, and > 10 μm particles than MERV 12 and all smaller MERV values. All other MERV values on each row do have minimum removal percentages for that row's particle size.".
- Minimum_efficiency_reporting_value wikiPageExternalLink all-about-merv-ratings.
- Minimum_efficiency_reporting_value wikiPageExternalLink FilterPerformanceByDN.pdf.
- Minimum_efficiency_reporting_value wikiPageExternalLink residair.html.
- Minimum_efficiency_reporting_value wikiPageExternalLink automotive.html.
- Minimum_efficiency_reporting_value wikiPageID "10353623".
- Minimum_efficiency_reporting_value wikiPageRevisionID "597851371".
- Minimum_efficiency_reporting_value hasPhotoCollection Minimum_efficiency_reporting_value.
- Minimum_efficiency_reporting_value subject Category:Filters.
- Minimum_efficiency_reporting_value subject Category:Heating,_ventilating,_and_air_conditioning.
- Minimum_efficiency_reporting_value type Artifact100021939.
- Minimum_efficiency_reporting_value type Device103183080.
- Minimum_efficiency_reporting_value type Filter103339643.
- Minimum_efficiency_reporting_value type Filters.
- Minimum_efficiency_reporting_value type Instrumentality103575240.
- Minimum_efficiency_reporting_value type Object100002684.
- Minimum_efficiency_reporting_value type PhysicalEntity100001930.
- Minimum_efficiency_reporting_value type Whole100003553.
- Minimum_efficiency_reporting_value comment "Minimum efficiency reporting value, commonly known as MERV rating, is a measurement scale designed in 1987 by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) to rate the effectiveness of air filters. The scale "represents a quantum leap in the precision and accuracy of air-cleaner ratings" and allows for improved health, reduced cost and energy efficiency in heating, ventilation and air conditioning (HVAC) design.".
- Minimum_efficiency_reporting_value label "Minimum efficiency reporting value".
- Minimum_efficiency_reporting_value label "Minimum efficiency reporting value".
- Minimum_efficiency_reporting_value sameAs Minimum_efficiency_reporting_value.
- Minimum_efficiency_reporting_value sameAs m.02q97gc.
- Minimum_efficiency_reporting_value sameAs Q6865451.
- Minimum_efficiency_reporting_value sameAs Q6865451.
- Minimum_efficiency_reporting_value sameAs Minimum_efficiency_reporting_value.
- Minimum_efficiency_reporting_value wasDerivedFrom Minimum_efficiency_reporting_value?oldid=597851371.
- Minimum_efficiency_reporting_value isPrimaryTopicOf Minimum_efficiency_reporting_value.