3M Filtrete Ultimate Furnace Filters

Shipping Details
Order Subtotal Shipping & Handling Promotional Shipping
$0 - $29.99 $5.99
$30 - $59.99 $9.99
$60 - $89.99 $11.99
$90 - $119.99 $12.99
$120 - $149.99 $14.99
$150 - $199.99 $19.99 Free Promotional Shipping!
$200 - $299.99 $24.99 Free Promotional Shipping!
$300 - $399.99 $29.99 Free Promotional Shipping!
$400+ $39.99 Free Promotional Shipping!

*Free shipping on orders over $150 to the continental United States. Customers are responsible for all shipping costs on orders for Hawaii, Alaska, and Canada. Most orders ship via UPS or US Postal Service. Most orders are shipped to Canada via USPS. Please keep in mind that our rates include the cost of shipping, handling, and packaging. If you return your order, we do not refund the initial ground or promotional shipping costs.

3M Ultimate Allergen Filter 10 x 20 x 1


3M Ultimate Furnace Filters

The Ultimate Allergen Filter is 3M's newest and most advanced Filtrete furnace filter. Indoor air quality is a growing concern, and the Ultimate Allergen Filter addresses the problem with its superior performance in filtering small particles from your indoor air. This furnace filter is 93% effective at capturing airborne allergens like dust, pollen, mold, and pet dander, and also reduces smoke, bacteria, and other airborne pollutants. 3M Filtrete furnace filters are disposable and should be replaced every three months with normal use.

3M Ultimate Furnace Filters - Product Features

  • Captures at least 93% of airborne allergens from the air passing though the filter. The Ultimate Allergen filter is the best performing 3M furnace filter.
  • Highest MPR (Microparticle Performance Rating) available in 1" Filtrete furnace filters - the Ultimate Allergen Filter has an MPR of 1900 based on independent laboratory testing.
  • Keep indoor air healthy - Filtrete furnace filters capture bacteria, smog, and other tiny particles.
  • 3M Filtrete furnace filters outperform other fiberglass, non-electrostatic pleated filters, and washable 1" filters.
  • MERV 11 means high efficiency in removing airborne allergens.
  • 3M Filtrete furnace filters won't promote the growth of bacteria or mold.
  • Meets the American Lung Association indoor air quality guidelines.

Product Reviews

Be the first to review this product. Rate it now.

Customer Q & A

Q1: Hi, I am looking for filters that I can use for my windows to keep the air in the room dust or pollution-free. Will your product be effective permanently or do I need to replace it after a while? Thank you.

A: This were necessarily designed for use in windows as the material won't let too much air through. Unlike an HVAC system where air is forced through by a blower, in a window it would cut down on breezes coming through. That being said, the filter life is only about three months when installed in an HVAC system. You would likely see longer use times since air isn't actively being pushed through the window, but it's not permanent. However, if installed such that there's no or very little air passing by/around the filter, it would remove all visible and a vast majority of invisible particulate from the air from passing through the window.

Read all Q & A

Ask a Question Ask a Question
Do you have a question about this product? Ask a Product Expert! The answer will be emailed to you and posted for the benefit of other shoppers.

Additional Resources

Furnace Filter Buying Guide
Learn more about how to control mold.
Read more about how to control dust mites.


3M Ultimate Allergen Filter 10 x 20 x 1 (Item#: 3M0145) (Discontinued)

Could not wait to try Safeguard Window Filters. I am using them, am very pleased and have high hopes that my solution to open windows is at hand!
More Testimonials