MERV = 'Minimum Efficiency Reporting Value' this is used to rate the overall effectiveness of an Air Filter. Below you will find a table that measures the MERV strength and tells you the Application of each unit's effectiveness. In general an Air Filter with a higher MERV Rating is more effective and has a broader application, but most residential homes will find the best use from an air filter between the 5-12 MERV rating.
|MERV RATING||MIN. PARTICLE SIZE||TYPICAL CONTROLLED CONTAMINANT||TYPICAL APPLICATIONS|
|1 - 4||> 10.0 Micrometers||Pollen, dust mites, cockroach debris, sanding dust, spray paint dust, textile fibers, carpet fibers||Residential window AC units|
|5 - 8||10.0 - 3.0 Micrometers||Mold, spores, dust mite debris, cat and dog dander, hair spray, fabric protector, dusting aids, pudding mix||Better residential, general commercial, industrial workspaces|
|9 - 12||3.0 - 1.0 Micrometers||Legionella, Humidifier dust, Lead dust, Milled flour, Auto emission particulates, Nebulizer droplets||Superior residential, better commercial, hospital laboratories|
|13 - 16||1.0 - 0.3 Micrometers||Bacteria, droplet nuclei (sneeze), cooking oil, most smoke and insecticide dust, most face powder, most paint pigments||Hospital & general surgery|
|17 - 20||< 0.3 Micrometers||Virus, carbon dust, sea salt, smoke||Electronics & pharmaceutical manufacturing cleanroom|
Average Rating Based on 5 reviews:
Great value! - 10/15/2018
Reviewer: Kristin Bergman
Great value. Our older HVAC system is handling them much better than some of the fancier filters out there and the filters themselves are keeping up well with our two cats.
Reviewer: Raymond Fetcenko
The only product I will use in my furnace. Works well. Rating a 5.
Excellent - 11/07/2016
Reviewer: Karl Pfeiffer
handled very professionally
Reviewer: suzanne smith
It was so easy to order online. I don't have to deal with stores. Thank you
new favorite - 11/30/2011
Reviewer: Pete Milford
wont go back to the other, this works much better
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