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Microparticles matter - they can make up to 99% of what we breathe.

Scientists at 3M believe that MERV only tells part of the story, so we created a different measurement — Microparticle Performance Rating (MPR). This rating includes microscopic particles not visible to the naked eye — particles that are not even measured on the MERV scale until it reaches MERV 11.

Exclusive Filtrete™ Brand filter technology focuses on capturing the tiniest particles – between 0.3 and 1 micron (µm) in size. Filtrete™ Healthy Living Filters capture bacteria, cough and sneeze particles, and even viruses.2​
Minimum Efficiency Reporting Value (MERV) is the industry standard for measuring how well a heating and cooling system’s filter captures particles. MERV air filter ratings range from 1 (least efficient captureability) to 16 (very efficient).

Filters with a MERV rating of 1-4 mostly filter out dust, lint and pollen among other larger, common particles — they do very little to trap small microparticles.​


Filtrete™ Brand Filters with MPR

Many other rating systems like MERV do not consider the air resistance created by a filter. High air resistance makes your home’s heating and cooling less efficient, and can waste energy and may even damage your system. Filtrete™ Brand Filters are designed to deliver premium air filtration with low lifetime airflow resistance — this makes it ideal for your heating and cooling system.​
Make sure your air filter is measured by MPR

The higher the MPR, the more microparticles your filter will capture as you run your heating or cooling system. From remodeling a home to adopting a new pet, each home has its unique filtration requirements. We can help you find the filter right for your home.​
Understanding particle sizes

Filtrete™ Brand technology makes it possible to capture the tiniest particles – between 0.3 and 1 micron in size — including bacteria and viruses through select high-performing filters within the portfolio.​

Shop By Filter Performance​

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Are you air aware?

Reasons to try a Filtrete™ Smart Air Filter

Filter Life
Filter Life

Filtrete™ Smart Air Filters are outfitted with a sensor that helps monitor air flow and usage – not just time – letting you know when it’s right to make a change.​
Indoor Air Quality
Outdoor Air Quality

The Filtrete™ Smart App can display outdoor air quality information for multiple locations, so you can monitor your air quality anytime, anywhere.​
Trends, Tips & Alerts
Trends, Tips & Alerts

Filtrete™ Smart App notifications keep you informed about your air filter life and provide active tips for helping to improve the air quality in your home.​
Replacement made easy
Replacement Made Easy

The Filtrete™ Smart App keeps track of your specific filter type and size and makes it easy to order replacement filters.​
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Allergen Defense Micro Allergen Deep Pleat Furnace Filter - 4" x 20" x 25" (Slim Fit)
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#5522-910
Allergen Defense Micro Allergen Deep Pleat Furnace Filter - 20" x 20" x 4" (Slim Fit)
 (0)
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#5523-703
Allergen Defense Micro Allergen Furnace Filter - 20" x 25" x 1", 2 Pack
 (0)
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#5522-002
Healthy Living Ultra Allergen Furnace Filter - 1" x 16" x 25", 2 Pack
 (428)
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#5522-371
Allergen Defense Micro Allergen Furnace Filter - 1" x 16" x 25", 2 Pack
 (66)
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#5522-670
Healthy Living Ultra Allergen Deep Pleat Furnace Filter - 5" x 25" x 16" (Slim Fit)
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#5522-911
Healthy Living Elite Allergen Filter - 1" X 16" X 25"
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#5522-770
Allergen Defense Micro Allergen Furnace Filter - 14" x 25" x 1"
 (477)
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#5523-141
Healthy Living Ultra Allergen Deep Pleat Furnace Filter - 5" x 16" x 25"
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#5522-648
Allergen Defense Micro Allergen Furnace Filter - 16" x 25" x 1"
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#5523-178
Healthy Living Ultra Allergen Furnace Filter - 1" x 14" x 25"
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#5523-588
Healthy Living Ultra Allergen Furnace Filter - 1" x 16" x 25"
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#5523-613
Allergen Defense Micro Allergen Furnace Filter - 20" x 24" x 1"
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#5523-114
Allergen Defense Micro Allergen Furnace Filter - 16" x 20" x 1"
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#5523-169
Allergen Defense Micro Allergen Deep Pleat Furnace Filter - 4" x 25" x 16" (Slim Fit)
 (15)
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#5522-912
Allergen Defense Micro Allergen Furnace Filter - 15" x 20" x 1"
 (475)
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#5523-150
Allergen Defense Micro Allergen Furnace Filter - 16" x 24" x 1"
 (475)
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#5523-105
Allergen Defense Micro Allergen Furnace Filter - 20" x 20" x 1"
 (479)
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#5523-187
Healthy Living Ultra Allergen Furnace Filter - 1" x 16" x 20"
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#5523-604
Healthy Living Maximum Allergen Furnace Filter - 1" X 16" X 25"
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#5522-780
Healthy Living Ultra Allergen Furnace Filter - 1" x 20" x 20"
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#5523-622
Healthy Living Maximum Allergen Furnace Filter - 1" X 20" X 25"
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#5522-781
Healthy Living Ultra Allergen Furnace Filter - 1" x 20" x 25"
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#5523-631
Healthy Living Ultra Allergen Furnace Filter - 1" x 16" x 24"
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#5523-597
Allergen Defense Micro Allergen Deep Pleat Furnace Filter - 20" x 25" x 5"
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#5523-701
Hammock Furnace Filter - 30" x 60"
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#5522-020
Healthy Living Ultra Allergen Furnace Filter - 1" x 20" x 25", 2 Pack

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#5523-600
Smart Allergen Bacteria & Virus Furnace Filter - 1" x 16" x 25"
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#5522-733
Allergen Defense Micro Allergen Furnace Filter - 20" x 25" x 1"
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#5523-196
Furnace Filter - 1" x 10" x 20"
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#5522-021

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