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Clean air is something to be thankful for.

Clean air is something to be thankful for.

Why the Defender is a smart choice:

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100% Refundable,
30 Day Trial

Worry Free. If you are unsatisfied with your purchase, simply return for a full refund within 30 days.

COVID Capture Technology

Verified Results. 99.9% capture rate, with over 95% of the captured pathogen verified as destroyed in the first 24 hours.

Unmatched Warranty

Peace of Mind. The Defender includes an industry leading LIFETIME perpetual warranty.

three defenders
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Defender Air Purifier

✓ 30 day in-home trial

✓ Lifetime Perpetual Warranty

✓ FDA-Cleared Class II Medical Device

✓ Assembled in our Ohio manufacturing facility

✓ For small and large spaces up to 700 sq. ft.

Eliminates & destroys the SARS-CoV-2 virus & viruses like it

✓ Captures 99.99% of airborne particles down to 0.1 microns

✓ 30 day in-home trial

✓ Lifetime Perpetual Warranty

✓ FDA-Cleared Class II Medical Device

✓ Assembled in our Ohio manufacturing facility

✓ For small and large spaces up to 700 sq. ft.

Eliminates & destroys the SARS-CoV-2 virus & viruses like it

✓ Captures 99.99% of airborne particles down to 0.1 microns

Sold out

Or choose easy financing at checkout:

Shop Pay - 4 Interest Free Payments

free shipping

Free Shipping

Delivered Quick. The Defender includes free shipping anywhere in the USA.

Assembled In The USA

USA Assembled. From the Ohio, USA manufacturing facility directly to you.  

Trusted

Established Dependability. Millions of satisfied customers worldwide have trusted FilterQueen for nearly 100 years.

See what actual customers are saying:

Many of my students have come up to me and told me how grateful they were that we were able to continue our class knowing that the Defender was running and that we were able to have purified air. They felt much more secure and happy to be there.


– Diana W.

free shipping

Free Shipping

The Defender includes free shipping anywhere in the USA. Order today and start enjoying fresh air.

unmatched warranty

Unmatched Warranty

We offer a LIFETIME perpetual warranty for the Defender Air Purifier. Purchase and replace your Medi-Filter Cartridge each year and enjoy a lifetime of clean, purified air.

90 years in business

Over 90 Years In Business

In the last few years, other companies have tried to take advantage of the urgency to protect the indoor air. Healthy indoor air quality has been our way of life since 1928.

How the Defender works

360° Air Intake

The lower half of the Defender pulls air in from every angle, no matter which way the machine is facing.

VOC & Odor Capture

Air filters through the Enviropure Activated Charcoal Wrap, capturing numerous types of harmful VOCs and unwanted odors from the room.

Particle Capture

Air filters through the better-than-HEPA Medi-Filter Cartridge, capturing harmful particles down to 0.1 micron in size.

360° of Purified Air

The Defender circulates clean air back into the room from the top half of the machine.

defender cutaway
particle comparison chart

Meets the following EPA guidelines:

does not produce ozone

Does not produce ozone

Ozone is harmful to the environment.

no uv light

No UV light

UV light is ineffective, costly and dangerous.

effective filtration

Effective filtration capability

3x better-than-HEPA standard.

360° Intake & Exhaust

Polluted air is pulled in from all sides through both filters. Secure Seal Technology ensures that pure, clean air returns to the room.

Lightweight & portable

Moves easily from room to room, providing a healthier home, work, college, or travel environment.

Quiet, 24-hour operation

Enjoy a significant reduction in airborne pollutants and dusts, allowing you to breathe easier and get a better night's sleep.

Help keep your family healthy with purified air.

Medi-Filter Cartridge

Provides three times better-than-HEPA filtration to remove harmful airborne pollutants, such as dust mites, mold spores, viruses, bacteria, pet dander, airborne chemicals and more.

Filter change frequency – 12 months

Enviropure Charcoal Wrap

Made with HEGA (High Efficiency Gas Absorption) material, which is highly effective at removing harmful pollutants and odors, such as VOCs, cigarette smoke, and more.

Filter change frequency – 6 months

Defender Tech Specs

FDA-Cleared Class II Medical Device

FDA Clearance:

510(k) Class II medical device (#K010616)

Dimensions:

17.5" height x 12.25" diameter

Weight:

12.75 pounds

Speed Controls:

3

Square Foot Coverage:

up to 700 sq. ft.

Air Outlet:

360° Pure Top Release

Motor:

Brushless high efficiency motor
(100,000 hours expected life)
120V / 60Hz / 85W

Amps:

0.67 (high)
0.38 (medium)
0.24 (low)

Outlet:

Standard 110/120 U.S. Outlet

Plug:

Polarized Type A Plug

CSA Approved:

Yes

Decibels:

High Speed — 65
Medium Speed — 56
Low Speed — 46

Filtration Level:

> 99.99% at 0.1 micron

Bacterial Filtration Efficiency (BFE):

99.999%

MERV Equivalent Filtration Rating:

19

Warranty:

Lifetime Perpetual Warranty

Customer Reviews

Based on 180 reviews
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A
Anonymous
Can't Wait

A new Defender for my first home purchase. Cannot wait to try it out.

T
Todd A.
Amazing Air Cleaner

I live the new look and color options. I purchased 2 units and they are amazing with the allergies 🤧. Very quiet and easy to use.

J
Joanne F.
Love it

Love it so much bought one for our winter home. While being outside or in someone else's home my voice just about disappears, return home and it clears up to normal.

J
John F.
Great Products

We have used filter queen since the '70s.

E
Erica C.
This is my second purchase

This is our second Air purifier only because we have moved to a larger space. We have a family childcare home and I believe this is a big part of how I have not been sick in over 2 years despite children being great germ spreaders!! I would and do recommend!!