Custom Size - Reusable Furnace Filters

Description
Product Features
Customer Reviews
Questions and Answers

AIRTEVA Filters are the next generation in air filtration; they are unlike anything you've seen in stores. They are designed to protect human health. They replace your existing A/C or furnace filter. Once installed, this air purifying system will transform the quality of the air you breathe. We guarantee it.

You will get the AIRTEVA filter frame, which is a durable frame made entirely of aluminum. It has a special Leak-Guard Seal to prevent airborne particles from leaking. For better performance, the frame includes a screen that uses electrostatic charge. We will customize the size of your new frame to make sure it fits your AC or furnace perfectly. Plus, there's no need to change your hvac system because our frame fits all types and brands.

You will never go back to others

"We have been using these high quality HVAC filters for "many" years and found they are the best anywhere. Several people in our family suffer from severe asthma and this is the only filter that has been excellent for us. So if you are looking for a filter replacement that takes care of it all try this company. You will never go back to others."

by- Judy Kowalski from Hollywood, FL

customized furnace filters

Your filter frame includes a supply of BioSponge air filter refill(s).

BioSponge is a very effective type of air filter material used for air filters. It has a special coating called Aegis microbe shield that stops microbes from growing on the filter. In tests, it was able to remove up to 86.5% of airborne germs in just one go through the filter! Improving your indoor air quality.

BioSponge air filter media has the lowest resistance to airflow (.09 W.G. @ 300 FPM) so it works well when airflow is a concern. Plus lower energy bills.

About AEGIS Microbe Shield

Aegis technology stops the filter from becoming a place where mold, fungi, bacteria, and other airborne germs can grow. Imagine the surface of the air filter like it's covered in tiny, electrically charged swords. When germs touch this surface, the 'sword' breaks through their outer layer and the electrical charge zaps them. Because this process doesn't give anything away to the now-dead germs, the antimicrobial power stays strong. This means the 'sword' is always ready to take on the next germs that come along. More About AEGIS.

Furnace filters for allergy suffers

What good is a filter if everything goes around it?

To ensure that all the air and pollutants go through your air filter and not around it, AIRTEVA Filters feature a patented Leak-Guard Seal. When your air conditioner or furnace turns on, the difference in pressure causes an airtight seal. No bypass means you're filtering 100% of the air. That means the harmful particles get trapped in the air filter, rather than in the lungs of you and your family.

Rubber: Recommended for filters that are placed in grills

Brush: Recommended for filters that slide in tracks.

How do Activated Carbon filters remove odors?

Activated Carbon filters have the ability to capture gas molecules and hold them. The Activated Carbon filter surface is made up of millions of tiny pores, the gas and odors fall into these pores and are trapped there until the air filter is disposed.Carbon filter has a flattened surface area of a football field!

How do Zeolite air filters remove odors?

A three dimensional, micro-porous natural earth mineral, thermally bonded to polyester. Zeolite has the ability to remove Volatile Organic Compounds (V.O.C.) and gases. They are trapped in the void porous cavities in the filter. It is especially useful in removing Ammonia and ammonium compound odors such as pet odors and urine odors.

Replacing BioSponge Media

No more aggravating trips to the store to try and match sizes, and winding up with an ineffective furnace filter!

Your new air filter arrives ready to install, nothing to assemble. It's completely backed by the Air Sponge 60 Day Money-Back Guarantee. Clean, fresh air and so convenient -- you owe it to yourself to give it a try.

Filter Media Type	BioSponge
Size	Custom size x 3/4" thick
Efficiency	87% Arrestance
Air Flow	.09W.G. @ 300 FPM
MERV Rating	7+
Maintenance	60 Day refill life
Warranty	10 Years
In the Box	(1) permanent frame, replacement filter(s) and quick start guide

We hand make your permanent custom sized air filter frame of sturdy aluminum and a permanently attached electrostatic charged filter. They won't bend, melt or warp like plastic or cardboard furnace filters. All filter frames are backed by An industry - leading 10 year warranty!

Replacing the media every 30-60 days will reduce your electrical consumption and extend the life of your equipment. Need a reminder when to change your furnace filter?

Your AIRTEVA Filter may qualify for reimbursement under your health plan and may be tax deductible if prescribed. Ask your doctor.

Letter of medical necessity form

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Biospnge filters

I have been using these filters for many years now and wouldn't think of using anything else! I always believe you get what you pay for! The less expensive filters you can buy just don't work as well.

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Reviewed by: Karen from Boca Raton FL on 4/12/2014

I would highly recommend this company to anyone who needs quality A/C filters

We have been using your Biosponge Filters approximately 10 years. Due to my husband having asthma and other allergys and as well as pets in the house the Biosponge has really worked well for us. We always change the filter monthly and installation is quick and easy. We order online and ,we choose, to get a year's supply at one time. We receive discount coupons from the company which is a nice touch. Their Customer Service is excellent. I would highly recommend this company to anyone who needs quality A/C filters. Thank you for so many years of great service.

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Reviewed by: Suzanne Corriveau from Davie, Fl on 8/12/2016

Biosponge AC Filter

This is a excellent product . Service was great. Alyssa called to make sure that filter frame was correct . I highly recommend Filter Factory.

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Reviewed by: Ricardo Fong-Yee from Miami on 2/23/2017

Filter Review

The custom filter system was a perfect fit. Love the assembly using the magnetic frame...easy to manage. The filter itself does a great job. We got the year supply of Biosponge replacements. Very pleased!

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Reviewed by: Mark H. from Florida on 10/23/2019

The Best Filter

I have been using these filters for ten years in three different locations. It clears the musty odors and keeps the coils from building up. Love them!

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Reviewed by: Lisa O'daniel from Coconut Creek on 4/21/2020

Excellent Customer Servive and Fabrication

I spent many years trying to find a filter frame and filter for my return duct which was just an opening with a louvered hinged grate when I first bought my property many years ago. I had stumbled onto the filter factory and contacted them regarding mu HVAC Unit and frame with filter. They explained how to measure for the frame, recommended the type of filter which would best suit my Central Air Return, and were more than helpful. I received my Frame with my filter and it fit my return like a glove. I can already feel that my unit is working easier than before and I highly recommend the filter factory for any of your needs.

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Reviewed by: Bill Singiser from Elmer, NJ on 7/13/2021

Very pleased with purchase

The filter frame seems very strong and durable. It fits perfectly in my air handler. The process for choosing the proper filter size is very straightforward. It is simple to disassemble and reassemble the frame for replacing filters. I am very pleased with the quality of this filter.

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Reviewed by: Ryan McNeal from Florida on 9/14/2025

The Air Sponge is just what they advertise, it is the best filter around.

"The Air Sponge is just what they advertise, it is the best filter around." It is so convenient to have them make a permanent very sturdy attractive filter frame and then provide you with a year supply of the highest quality filters."

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Reviewed by: Cheryll from South Florida on 5/26/2004

Love the AC filters

Love the AC filters and being able to get exact fit sizes.

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Reviewed by: Liftoff28 from USA on 6/13/2010

Superior over the "store bought" types

Easy to install & maintain. Filtering ability is superior over the "store bought" types. The support frame is very sturdy and the exact size for my AC system. The service of e-mail furnace filter change reminders is a welcomed plus.

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Reviewed by: Peter Hulsart, from Woodbury, Connecticut on 2/13/2011

The Air Sponge filter has been a lifesaver.

My allergies were helped immediately when we started to use the filter.

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Reviewed by: Boshaki from Florida, USA on 8/6/2011

It was easy to put in and we love it.

Thanks so much for the help on the phone. We moved in to the house and found the filter and found out that it hasn't been changed in a long time. You got us the best filter and it came in two days. Thanks. It was easy to put in and we love it. Your website was easy to navigate on too. Thanks Crystal

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Reviewed by: Crystal Wind from Winter Haven, FL on 11/1/2011

Using for over 10 years,and the filter is great

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Reviewed by: joel rosen from margate fl on 11/8/2011

Service is marvelous.

As usual, the service is marvelous...filters are just what I expected and have ordered before. Thank you for the courteous service. BT

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Reviewed by: Barbara Toyne from North Highlands on 1/22/2012

The air seems to smell better!

The air seems to smell better when we began using this filter. We feel better knowing that the air we breathe is cleaner.

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Reviewed by: Stanley Michelson from Hallandale Beach FL on 7/16/2012

Cleaning my air

This is not my first time ordering from this company and won't be the last time. I did go back to the store bought to try to save money and boy was that a big mistake. So I am back and I will stay a customer till the end.