3M Filtrete 1" Air Filters Comparison Chart:

3M Filtrete
  Basic
Dust

Dust
Reduction

Micro
Allergen Defense

Allergen Defense
Odor Reduction

Ultra
Allergen

Ultimate
Allergen

Elite
Allergen

Ultrafine
Particle Reduction

Description: Entry Level Basic Good
Good Better Better Best Best
Starting From: $5.99/filter $8.49/filter $12.79/filter $14.99/filter $16.49/filter $16.99/filter $18.50/filter $26.82/filter
Available in: 15 sizes 16 sizes 33 sizes 10 sizes 30 sizes 21 sizes 7 sizes 7 sizes
* MPR Rating: 300 600 1000 1200 1500 1900 2200 2800
MERV Rating: 6 7 11 11 11 12 13 14
** Efficiency: 35% 65% 80% 85% 90% 93% 94% 97%
Pressure Drop: 0.20 0.20 0.21 0.24 0.15 0.16 0.18 0.24
Captures: Large allergens: household dust and lint. Large allergens: household dust, pollen, dust-mite debris, and lint. Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, and bacteria.

Home odors caused by: pets, tobacco smoke, cooking, mildew and cleaning chemicals.

Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, and bacteria.

Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, bacteria, and particles that can carry viruses.

Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, bacteria, particles that can carry viruses, and particles that can carry odors.

Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, bacteria, particles that can carry viruses, and particles that can carry odors.

Large allergens: household dust, pollen, dust-mite debris, mold spores, and pet dander.

Small allergens: smoke, smog, bacteria, particles that can carry viruses, and particles that can carry odors.

Summary: Most economical Filtrete Filter available Best value in a 1" Filtrete Filter Most economical "High-Performance" Filter Most effective odor-reducing carbon Filter High-Performance Filter with lowest pressure drop available Enhanced High-Performance Filter Premium High-Performance Filter, available in select sizes The absolute best quality filter, available in select sizes
* (Filtrete Microparticle Performance Rating (MPR) based on particle capture performance for several important categories of airborne particles)
** (Efficiency at 3 - 10 microns)

 

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About 3M Filtrete 1" Air Filters:

3M Filtrete filters contain electrostatically charged filter media made of polypropylene and polyolefin plastic, and capture particles that measure between 0.3 - 10 microns in size. The electrostatic properties cause the filter to act like a magnet, helping it to attract both large and small particles into the filter's pleated fabric. 3M Filtrete filters (MPR 600 or higher), when clean and new, outperform all other fiberglass, washable and non-electrostatic 1" residential air filters.

MERV and 3M Performance Rating:

MERV (Minimum Efficiency Reporting Value) is a number from 1 to 16 produced from an air filtration test designed by the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE). The MERV rating is designed to help you compare the effectiveness of various air filters, with a higher MERV rating indicating better filtration performance. 3M also produces their own independent ratings which focus instead on a filter's ability to capture the smallest particles and allergens measured in the ASHRAE test. Using particle data between 0.3 and 1.0 microns in size, the Microparticle Performance Rating (MPR) is 3M's way of demonstrating their filter's superiority at capturing the smallest microscopic particles. A higher MPR rating indicates a more effective 3M Filtrete filter.

Recommended Replacement:

Filtrete filters should be replaced at least once every three months. If a Filtrete furnace filter remains in use longer than three months, it may begin to restrict airflow. In addition, certain conditions in your home will significantly add particles to the air causing the filter to capture more particles than usual. This will shorten the filter life to less than three months and reduce the effectiveness of the filter to capture particles. These conditions include: Dirty Ductwork, Construction Work, Sanding Projects, Pets, Burning Candles, Tobacco Smoke and Fireplace/Wood-Burning Stove Smoke. In addition, running your furnace or air conditioning fan continuously will help clean the air in your home but could further shorten the life of the filter. So, if you use a Filtrete filter under these conditions, it could begin to restrict airflow, especially in energy efficient furnace and air conditioning systems. In these cases, change the filter more frequently.

To determine when the filter needs to be changed, hold the filter up to a light source. If you cannot see any light through the filter, it should be changed even if it has been used less than 3 months.