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 83 reviews:
Air filter Merv 12 - 07/13/2017
Reviewer: Mary Lackey
Got order in a timely manner and was very satisfied.
Reviewer: Willie Bernhardt
No problem. everything worked fine
Speedy Fast Delivery - 06/19/2017
Reviewer: Judy Burns
I receive my filter in a good time. I really appreciated how easy.
GREAT SERVICE - 06/05/2017
Reviewer: JERI KELLER
ALWAYS PLEASED WITH THE SPEED OF DELIVERY OF THESE GREAT FURNACE FILTERS WE GET FROM HONEYWELL.
Reviewer: Nancy Ashley
Great filter, the previous one was 5 inches, this one 4 inches
air filter - 06/02/2017
Reviewer: William Hyson
After the first order was damaged in delivery, Honeywell sent me a replacement very quickly. I was very pleased with the customer service.
Another successful online order - 06/02/2017
Reviewer: Tom Hughes
I just received a new filter that I ordered online. It is very convenient for me to order this way and I always get my order promptly. Great service.
Honeywell AC Filter - 05/31/2017
Reviewer: Martin Clemens
Good quality product. Delivery was prompt. Prices are competitive.
Reviewer: Greg Bonavia
The filters were not damaged and worked great.
Future king - 05/15/2017
Reviewer: Gerald Martin