Price is for a six-pack of filters. The FiltreteUltimate Allergen Reduction Air Filter is one of the newest and most advanced high-performance filters from Filtrete. No competitor's furnace filter performs better! The Ultimate Allergen even outperforms Filtrete's own Advanced Allergen- previously the No. 1 performance filter on the market. It provides 25% more air cleaning power than the Filtrete Ultra Allergen Reduction Filter. The Ultimate Allergen ReductionAir Filter boasts a 1900 Microparticle Performance Rating (MPR), which represents the effectiveness of a filter at capturing the smallest airborne particles measured in the industry standard test. The FiltreteUltimate Allergen Filter is 93% Effective at attracting and capturing large airborne contaminants such as: Pollen - when ingested into the human body causes the immune system to produce large amounts of antibodies, which in turn causes chemicals such as histamines to be released. These chemicalscan causesneezing, runny nose, and watery eyes. Mold Spores - are released into the air when mold found in wood, ceiling tiles, wallpaper, paint, carpet, sheet rock, and insulation is disturbed. Mold spores can cause symptoms such as sneezing, runny nose, and itchy or watery eyes. Dust Mite Debris - a combination of dead skin and dust mite feces, this debris lives in our beds, chairs, couches, and our children's stuffed animals. Dust mite debris is almost as effective as pollen at causing symptoms such as sneezing, running nose, and watery eyes. Smoke - cigarette, cigar, fireplace, and wood burning stove smoke contain very tiny particles composed of wood tar, gases, soot, and ashes that can cause severe irritation and allergic reaction in some people and even trigger bronchitis or asthma attacks in others. Smoke also contains carcinogens which could lead to lung disease and cancer. Pet Dander - tiny pieces of skin that come off of your dog or cat when they scratch. This dander either floats suspended in the air or sticks to whatever they land on. Allergies to pet dander can be very serious, including symptoms such as swollen eyes and throat, watery eyes, runny nose, sneezing, coughing, wheezing, or even asthma attacks. Household Dust - dust accumulates everywhere in your home: carpets, tables, TV screens, clothes, walls, etc. Simply walking around in your home may disturb or stir up dust into the air which can thenirritate your immune system. Smog - even if you live in the remote countryside in a small town with little to no industry, chances are your home still contains smog. Smog, a combination of smoke and fog, makes its way from urban/industrial areas of the world right to your doorstep on the wind. Breathing in smog for prolonged periods of time can not only cause allergic symptoms such as watery eyes and running nose, but also more serious respiratory issues such as wheezing, coughing, asthma attack and sore throat. Bacteria - airborne bacteria can be found any and everywhere. While some bacteria is beneficial to us, bad bacteria can cause problems such as pneumonia, strep, staph and many other infections. Only the highest quality air filters can remove bacteria and prevent its growth once trapped. Virus Carrying Particles - like bacteria, viruses can be found just about anywhere but are rarely helpful to the human body. Viruses can attach themselves to just about any particle and once disturbed can become airborne. Once inside our cells, viruses can reek havoc on our immune systems with diseases from everything from the common cold to the flu, chickenpox, and Ebola. The 3M FiltreteUltimate Allergen Air Filter lasts 3 months and meets the American Lung Association Health House Indoor Air Quality Guidelines. The 3M Filtrete Deep Blue Ultimate Allergen Air Filter comes the following sizes and part numbers: Filter Sizes Part Numbers 10x20x1 10x20 UA07DC UA07DC-6 12x12x1 12x12 UA10DC UA10DC-6 12x24x1 12x24 UA20DC UA20DC-6 Replaces AA20, AA20-6 14x14x1 14x14 UA11DC UA11DC-6 14x20x1 14x20 UA05DC UA05DC-6 Replaces AA05, AA05-6 14x24x1 14x24 UA23DC UA23DC-6 14x25x1 14x25 UA04DC UA04DC-6 Replaces AA04, AA04-6 14x30x1 14x30 UA24DC UA24DC-6 16x16x1 16x16 UA16DC UA16DC-6 16x20x1 16x20 UA00DC UA00DC-6 Replaces AA00, AA00-6 16x25x1 16x25 UA01DC UA01DC-6 Replaces AA01, AA01-6 17.5x23.5x1 17.5x23.5 UA29DC UA29DC-6 18x18x1 18x18 UA17DC UA17DC-6 18x24x1 18x24 UA21DC UA21DC-6 20x20x1 20x20 UA02DC UA02DC-6 ReplacesAA02, AA02-6 20x24x1 20x24 UA26DC UA26DC-6 20x25x1 20x25 UA03DC UA03DC-6 ReplacesAA03, AA03-6 20x30x1 20x30 UA22DC UA22DC-6 Replaces AA22, AA22-6 23.5x23.5x1 23.5x23.5 UA30DC UA30DC-6 24x24x1 24x24 UA12DC UA12DC-6 24x30x1 24x30 UA13DC UA13DC-6 Filtrete's Microparticle Performance Ratings Installation instructions included on packaging.
