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 93 reviews:
Honeywell Air Filter Ultra Efficiency CF200A1024/U, 20x20x4.5 - Merv - 10/30/2017
Reviewer: JAY MERGAMAN
Excellent product and customer service
SAVE MONEY AND TIME - 09/20/2017
Reviewer: Brian Cummings
THIS WAS A VERY EASY PROCESS. JUST CLICK AND IT IS SENT TO YOUR DOOR
Best price - 09/04/2017
Reviewer: Donna Weidle
We keep a supply of filters so when our 6 month tune up, we provide for the heater tech to use.
Reviewer: Dennis Lewis
Easy to order. Arrived quickly
Reviewer: Fred Duncan
Order was received on time. Product was as described.
Clean - 08/22/2017
Reviewer: James Trujillo
Since installing AC with this filter my home is much less dusty and cooler
Filter - 08/17/2017
Reviewer: Christopher Juett
Fast delivery, good quality
Excellent - 08/08/2017
Reviewer: Ambrogio Calderone
The order was exactly what I was expecting and the price was lower than the one charged by the the air conditioning company that services my unit.
right fit - 08/07/2017
Reviewer: Larry Jennings
it is the only filter that I have found to fit my ac and I like getting a reminder that it is time to replace it.
Review - 08/05/2017
Reviewer: derral carter
You were fast in shipping and they are great quality filters. Thank you