defender ballet

Clean air is something to dance about.

Clean air is something to dance about.

In stock and FREE 2-day shipping

defender white
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or 4 Interest Free Payments of $199.75. Choose Shop Pay at checkout.


or 4 Interest Free Payments of $199.75. Choose Shop Pay at checkout.


Defender Air Purifier

✓ FDA-cleared Class II Medical Device

✓ 3x better-than-HEPA filtration

✓ Lifetime Perpetual Warranty

✓ Quiet, 24-hour operation

✓ Ozone-free

✓ FDA-cleared Class II Medical Device

✓ 3x better-than-HEPA filtration

✓ Lifetime Perpetual Warranty

✓ Quiet, 24-hour operation

✓ Ozone-free

Sold out

or 4 Interest Free Payments of $199.75. Choose Shop Pay at checkout.



100% Refundable,
30 Day Trial

If you are unsatisfied in any way with your purchase, simply return your Air Purifier for a full refund within 30 days.


Class II Medical Device

The Defender is recognized by the FDA as a Class II Medical Device and is hospital tested.


Assembled In The USA

Our manufacturing and assembly plant is located in Ohio. We have been assembling FilterQueen products right here in the USA.

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.

HEPA is the industry standard (99.97% at 0.3 micron). Our filters have been independently tested to remove 99.99% of particles down to 0.1 micron in size.

defender particle chart gif
particle comparison chart
free shipping

Free 2-Day Shipping

The Defender includes free 2-day shipping anywhere in the USA. Order today and start enjoying fresh air within 2 business days.

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.

defender bronze

3x better-than-HEPA filtration

Removes 99.99% of many harmful airborne particles that standard HEPA filters leave behind.

virus bacteria drawing

Viruses & Bacteria

mold spores drawing

Mold Spores

dust mites drawing

Dust Mites

pet dander drawing

Pet Dander

smoke drawing

Smoke Particles

pollen drawing

Pollen & more

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


17.5" height x 12.25" diameter


12 pounds

Speed Controls:


Room Size Coverage:

up to 700 sq. ft.

Air Outlet:

360° Pure Top Release


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


0.90 (high)
0.43 (medium)
0.27 (low)


Standard 110/120 U.S. Outlet


Polarized Type A Plug

CSA Approved:



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

Filtration Level:

> 99.99% at 0.1 micron

Bacterial Filtration Efficiency (BFE):



Lifetime Perpetual Warranty

Customer Reviews

Based on 173 reviews
Always dependable

I just purchased me third defender and now have them in all of our bedrooms. Filtration is the best and they are very dependable. I trust letting them run 24/7 in my home. The price is worth the quality!

Kevin b.
Fresh air !

I first set my defender up and turned it on before going to work when I came home as soon as I walked in it was a noticeable fresh difference ! I’m struggling to determine if I should leave it on medium or low for most of the time but otherwise love the difference the defender has made. It’s not impossible to achieve clean fresh air in an old apartment if you have a defender.


I have owned air-cleaner machines for 20 years. I got a serious mold issue from water intrusion after a horrible storm. That's when I began buying "Air-Scrubber" units to run during remediation. They worked well for the process and I have been continuing to use them ever since. But age, and saturation of mold particles, has turned them into infection instead of protection. I began to get sick again and decided to buy a new machine. I am so happy I chose the Defender. I have been running it, full throttle, for a week now throughout my home, and have seen an amazing result. I no longer am feeling sick, or the symptoms of the mold as I had experienced before. This machine has dramatically improved my quality of life. I would recommend it, enthusiastically, to anyone concerned about the quality of the air they breathe at home. I believe I am even sleeping better, and have a renewed outlook on life. Your health is your most important asset, without it you have nothing else. My thanks to FilterQueen . I have had their vacuum for 30 years, still works great today, looking forward to purchasing again in the future.

Sandra S.

I have had many air purifiers. This one by all means is the best. Well worth the price. I now have a quality machine that will last many years.👍👍

Michael E.
Filter Queen Defender

This is the third unit that I have of the Defender. We have 3 smokers in our house and really need these to help with the air. These unis are undetectable to the ear on low and medium, but high is a little annoying so I keep them at the lowest level in our family room, but believe it or not I have it on high in the bedroom. I can certainly here the unit but I learned jyst to ignore it and now it doesn't bother my sleep but this did take some time. I think the units work great as long as you stick to a filter reacement program.