FilterQueen® Defender Air Purifier

Create a safer, healthier environment for children to learn & explore.


FilterQueen helps to provide kids and staff with a healthy indoor environment.

Manufacturing and assembly plant located in Cleveland, Ohio.
A+ rating from the Better Business Bureau.

Helping families live better since 1928.

Create a healthier environment by removing 99.99% of airborne pollutants down to 0.1 micron!

Bring peace of mind to families and staff as the Defender purifies the air in your facility 24 hours a day.

filterqueen defender filter queen air purifier hepa air cleaner portable room

FilterQueen® Defender

This portable room air purifier uses its proven technology to create a cleaner, healthier environment that is protected from harmful pollutants. Includes: (1) Medi-Filter and (1) Enviropure Charcoal Filter Wrap.  

Independently tested to eliminate 99.9% of COVID-causing virus

  Removes 99.99% of airborne pollutants

FDA-cleared Class II Medical Device

  3x better than HEPA filtration


✓ Complimentary window decal



$250 off EACH Defender & Free Shipping 

Order 5 or more to receive $300 off EACH Defender!

Sold out

*For a school quote, email Sharlene at or call 440-846-7830

Why the Defender?

Unmatched warranty

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

FDA cleared

The Defender is FDA cleared as a Class II Medical Device and is hospital tested.

Assembled in the USA

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

How small is 0.1 micron?

Meets EPA guidelines

Does not produce ozone

Ozone is harmful to the environment.

No UV lights

UV light is ineffective, costly and dangerous.

Effective filtration capability

Three times better than the HEPA standard.

How to use CDC building recommendations in your setting

Opening windows, using portable air cleaners, and improving building-wide filtration are ways to increase ventilation in your school.

While implementing ventilation strategies, be sure to continue to take regular precautions to keep young children safe, such as using fans with covers and windows with screens.

Good ventilation is important, especially in areas where children may not be able to wear masks. If students eat in a common area, use methods such as opening windows, maximizing filtration as much as the system will allow and using portable HEPA air cleaners.

Proudly protecting kids, students, staff and teachers in over half the states in the US.
Here are just a few:

Defender Tech Specs


17.5" height x 12.25" diameter


12 pounds

Speed Controls:


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