23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840

3M 9840 | Our#: 110632
6 pack
 
 

23 1/2 x 23 1/2 x 1 Filtrete® Micro Allergen Reduction Filter from 3M - #9840. See all filters in this size

  • MERV 11 Rated
  • Change Every 3 Months
  • 23½x23½x1" Nominal
  • 23¼x23¼x⅞" Actual
$92.70 $120.99
Case of 6 Filters, $15.45 ea
In Stock
Ships Tomorrow, Oct. 19th
Est. Delivery By Oct. 26th

23 1/2" X 23 1/2" X 1" Filtrete® Micro Allergen Reduction Filter from 3M - #9840 - 6 pack

The Filtrete® Micro Allergen Reduction Filter carries a 3M Microparticle Performance Rating (MPR) of 1000 - roughly equivalent to a MERV 11 rating

Click here for detailed comparison of 3M Filtrete® 1" Filters

Features:
  • Meets the American Lung Association® Health House® Indoor Air Quality Guidelines
  • No unnecessary antimicrobial chemicals added; Filtrete filtering material will not support the growth of bacteria, mold, mildew or fungi in normal use
  • Contains electrostatically charged media to filter and attract particles in the air
Attracts and captures large allergens like:
  • Pollen
  • Mold spores 
  •  Dust mite debris
Attracts and captures microscopic allergens like:
  • Smoke
  • Pet dander
  • Household dust
  • Smog
* This filter should be changed at least every 3 months.  Certain conditions in your home will significantly add particles to the air - this will cause the filter to capture more particles, shortening it's life to less than 3 months.  These conditions would include: dirty ductwork, pets, construction work, sanding projects, tobacco smoke, burning candles, fireplaces and wood-burning stoves.

WHY USE MPR RATHER THAN MERV RATING?

The  Heating, Ventilating and Air Conditioning (HVAC) industry uses the ASHRAE 52.2 Standard, which assigns a Minimum Efficiency Reporting Value (MERV) to a filter. One part of MERV reports a filter's ability to capture medium to large particles between 1 and 10 microns. This value is helpful in comparing the performance of different filters but it is not adequate alone because particles greater than one micron make up only about 1% of the contaminants in your indoor air.

Another part of MERV addresses submicron particles. 3M calls this the MPR or Microparticle Performance Rating. It measures a filter's ability to capture particles between 0.3 and 1.0 micron. Based on independent laboratory tests, 3M's MPR measures a filter's ability to capture submicron particles that make up 99% of the particles in the air, such as bacteria, smoke and smog.

REVIEW SNAPSHOT®

by PowerReviews
3M23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840
 
4.8

(based on 5 reviews)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to install (4)
  • Good size/fit (4)
  • Good value (4)

Cons

    Best Uses

    • Central AC (3)
      • Reviewer Profile:
      • Homeowner (5)

    Reviewed by 5 customers

    Sort by

    Displaying reviews 1-5

    Back to top

     
    5.0

    Fit Perfectly and Work Great

    By Karen

    from Stuart, FL

    About Me Homeowner

    Verified Buyer

    Pros

    • Easy To Install
    • Good Fit
    • Good Value

    Cons

      Best Uses

      • Central AC
      • Central Heating

      Comments about 3M 23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840:

      The in-take vent in our foyer has very non-standard dimensions so it's difficult to find filters that fit. These filters worked perfectly and I really like the way they are packaged since it makes them easy to store and easy to access.

       
      5.0

      wow

      By veteran

      from SW Florida

      About Me Homeowner, Professional

      Verified Buyer

      Pros

      • Durable
      • Easy To Install
      • Good Fit
      • Good Value

      Cons

        Best Uses

        • Central AC
        • Central Heating
        • Home

        Comments about 3M 23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840:

        good product

         
        5.0

        I've been buying this product for years.

        By Marika

        from Fort pierce, fl

        About Me Homeowner

        Verified Buyer

        Pros

        • Easy To Install
        • Good Fit
        • Good Value

        Cons

          Best Uses

          • Central AC

          Comments about 3M 23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840:

          The size of my filter is not standard. I am very happy to have found your company on line. I've been using it for many years and am very happy.

           
          4.0

          Great Product & Easy Ordering

          By DCL

          from Stuart, Florida

          About Me Homeowner

          Verified Buyer

          Pros

          • Easy To Install
          • Good Fit
          • Good Value

          Cons

            Best Uses

              Comments about 3M 23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840:

              My only problem was remembering how to find it on the internet to order. Easy to order and delivery was good.

               
              5.0

              Good Product. Happy withthe size

              By marika

              from Florida

              About Me Homeowner

              Verified Buyer

              Pros

              • Durable

              Cons

              • Energy Inefficient

              Best Uses

                Comments about 3M 23 1/2 x 23 1/2 x 1 Filtrete Micro Allergen Reduction Filter - #9840:

                I was happy to find the right size filter for my unit. They are not easily available in stores such as [...]

                Displaying reviews 1-5

                Back to top