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 70 reviews:
Tried and true - 11/15/2017
Reviewer: Jennifer Bybee
I have always used these filters. They fit perfectly and trap the dust and gunk great. Since I bought 3 and each one lasts for 6 months, will my coupon be good when I need to order again?
Reviewer: Donald Patton
As usual arrived on time and was the right item.
Ultra efficiency Air Filter - 10/24/2017
Reviewer: Brian Murphy
Just what I wanted. Easy to install. With two dogs inside all the time,this filter is a life saver.
Very Good - 09/08/2017
Reviewer: Joe Faubion
This filter works very well in our new Daikin heat pump. Easy to change out and order a new one online from Honeywell. No fuss or problem doing so.
Honeywell Air Filter Ultra Efficiency CF200A1620/U, 16x20x4.5 - Merv - 08/17/2017
Reviewer: dae rhee
5 - very good
Furnace Filter - 08/11/2017
Reviewer: thomas hays
Great product. Cheaper than other online suppliers.
Reviewer: John Holcomb
We were very happy with the ease of ordering online and received it quickly!
Reviewer: Donald Patton
Very Good Filter. I've used this type of filter for 2 years and am very pleased with it.
Reviewer: Brian Butler
Quick, accurate service, great product!
Honeywell Air Filter Merv 12 - 06/19/2017
Reviewer: Christopher Moyer
Excellent filter, super easy to install and long lasting