Honeywell MicroDefense Air Filter Superior Efficiency CF112D1620/U, 16x20x1 (4-Pack) - Merv 12

The Honeywell CF112D1620/USuperior Household Air Filter has incredible lasting power and can perform at the highest level for 3 uninterrupted months. The recipient of a MERV 12 rating, this filter outperforms other residential air filters and is the very pinnacle of electrostatically charged filters. Exclusive Premium Media Filter Technology actively removes and minimizes pollutants down to the micro particle level. An incredibly smooth and easy installation process will have you breathing the absolute best air available in a matter of mere moments. Proven to be 95% 3efficent at filtering large households, this filter utilizes easy-flow energy efficeny and Honeywell's Micro Defense Air Filters to provide an additional layer of defense. Never settle for anything less than Honeywell when it comes to securing the air surrounding your home. 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