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 Customer Rating Based on 144 reviews:
Great Service - 07/21/2017
Reviewer: Molly Locken
Our electronic filter system Is beginning to fail after 24 years and these filters were recommended by the furnace company. Fit great and arrived in good shape and in a timely manner.
Great! - 07/16/2017
Reviewer: Stephanie Atwood
My HVAC guy said this filter was the best on the market! I believed him, purchased this and it seems to be fabulous.
Reviewer: Richard Mazzella
Reviewer: ROLAND FLORES
The web site was so easy to use and they were shipped right to my front door. Great, and the filters are great too!!
Reviewer: kathy morrissey
Great service. Thanks for the great product.
Honeywell store - 05/29/2017
Reviewer: Robert Goltare
This is the very best filter we have found by far...much less dust in the house. and it is what was recommended by the A/C installer of our new whole house system.
air filter - 05/15/2017
Reviewer: Dean Karas
Happy customer - 04/26/2017
Reviewer: Janet Vincentie
Second time customer.
Reviewer: Stephanie Brannigan
They are working very well for me.
Ordered the right one! - 04/18/2017
Reviewer: Rejeanne Desrosiers
It works way better then the previous one.