2 Filter Bundle of Honeywell Collapsible Air Filter High-Efficiency CF2400A1001/U, 16x28x4 - Merv 10

Replace the filter for your air purifier with the Honeywell CF2400A1001/U MERV 10 High-Efficiency Collapsible Air Cleaning Filter - 16 x 28. This filter unit is 40 times more effective than your typical 1 Inch filter. A new air filter can significantly decrease the number of allergens, bacteria and other particles in the air. The CF2400A1001/U is designed to last up to 12 months and should be replaced thereafter to maintain the cleanliness of your air. Establish an unrivaled breathing experience for you and your loved ones with Honeywell and their second to none series of Filters.

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