The Original

The Protector - Custom Size AC Furnace Air Filter

It's like armor for your air! This 2-ply antimicrobial air filter is impenetrable to mold & microbial growth (even the tiny stuff) and fits any HVAC system depth.

Sale price$55.00

Please add your custom size in the fields below:

Pack Size: 1 Filter

Purchase Options:


The Protector Product Details

Our 2-Ply Antimicrobial Filter is tougher than those cardboard-framed filters that hold moisture. The Protector is built with a proprietary antimicrobial filter media making it impenetrable to mold and microbial growth. Trust us, pleats are a bad idea on pants and even worse on filters.

  • Tight Fit - Eliminates the risk of unfiltered air passing around your air filter.
  • Mold and Moisture Resistant - No mold or microbials hit your air. (because we trap them!)
  • Depth Loading Arrangement - Traps all particles allowing air to still flow freely through the filter. (even the tiny stuff)
  • Fits All Depths - Will fit in 1, 2, 4, 5, even 6" depth. (yes, seems funny but it will 100% work)
  • Free Shipping - Don't pay extra for shipping. (because we love YOU and clean air)

Mold and Mildew Resistant

Our antimicrobial system is a key component in improving indoor air quality (IAQ). Microorganisms are chemically destroyed when they come in contact with the filter media. Airborne microorganisms are reduced by up to 86.5% on the 1st pass and continues to increase in effectiveness with each additional pass. Catch all the pollutants and enjoy higher quality air.

Trap All The Crap (Literally)

Our extended sealing gasket stops dirty air from bypassing the filter. This equates to cleaner indoor air, extended furnace life and reduced repairs. You'll see a noticeable decrease in the amount of dust on your glass coffee table!

Dust Less, Cleaner Home

The filter media layers "sift" dirt based on particle size. This multiplies the filter surface area. Over the service life of one filter it becomes more efficient as it "loads" up with large and tiny particles while still allowing a safe resistance for your unit.

Customer Reviews

Based on 51 reviews
90%
(46)
6%
(3)
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2%
(1)
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(1)
R
Richard DiLeonardo
So far so good

I think I have been using the filter for a month now. And it running well. Even had my system checked and the technician didn’t even say anything about me using a 20X25X1 instead of the 20X25X4. As I am supposed to. The filter make a perfect seal around the opening not letting anything through.

Thanks Richard! Great to hear that your filter is working well. No dirty air bypass around your filter means less cleanup for the techs in the future, keeping your hvac unit clean and working well. Take Care, Michael | Co-Founder & Director of Commercial Sales

R
Randall White

The Protector - 20x24x1 AC Furnace Air Filter

Thanks Randall! 5 star filter for a 5 star guy! Luke | Co-Founder & COO

F
Frank Magnanelli
Great filters!

Great fit, great filtering.

Hey there, Thanks Frank! Keep filtering and carry on! Happy to hear it is working well. Best, Cyd | Co-Founder & CEO

K
Kristeen Brouillard
Excellent

Excellent this is by far the best product ever for AC or any type of filter for heating unit etc etc it does everything it says and more! I will be a customer for life!!! I can't stop raving to all my friends and family about how wonderful this is and the fact that you don't have to remember or stack huge supplies on hand of poor quality merve filters is wonderful!!! These are delivered right to your door, who could ask for more.

What a great way to start the day reading this, Kristeen! Thank you so much for your excellent review. We are thrilled to hear that our product has exceeded your expectations and that you are a customer for life! We also appreciate you spreading the word to your friends and family about us. Hope you have a great day! Take care, Michael | Co-Founder & Director of Commercial Sales

F
Frank

Im not sure why they changed the design to a "folding filter". It was very difficult to install and still doesn't fit properly. The previous version was much better. I won't be buy any more of these if this is the only way it comes now.

Frequently Asked Questions