Air Purifier | Air Cleaner | Defender

1-800-344-1840   |  

  • the new normal

    Guard your health with the Defender Room Air Purifier

    Removes 99.99% of harmful pollutants down to 0.1 micron in size.

  • protect against viruses

    Help protect you and your family

    The "new normal" has been our healthy way of life since 1928.

The Science of Clean

Get peace of mind knowing the Defender Room Air Purifier uses proven technology to remove harmful pollutants from the air, such as pollen, mold spores, bacteria, viruses, pet dander, dust mites, smoke particles, cooking odors, and airborne chemicals, without producing harmful ozone.

portable defender

Discover the benefits of the FilterQueen Defender

The Defender is recognized by the FDA as a Class II Medical Device and is built in the USA with pride.

  • Filters 99.99% of particles down to 0.1 micron
  • Effective in small to large rooms
  • 3x better-than-HEPA filtration
  • Removes hundreds of noxious gases
  • Energy efficient
  • Quiet, 24-hour operation




Lifetime Perpetual Warranty


Hospital Tested


30-Day Risk-Free Trial

Indoor Air Pollutants

Remove harmful airborne contaminants and odors from any room in your home.

viruses and bacteria

Viruses & Bacteria

mold spores

Mold Spores

dust mites

Dust Mites

pet dander

Allergens & Asthma



chemicals and odors

Chemicals & Odors

Help keep your family healthy with fresh, clean air.

Help keep your family healthy with fresh, clean air.

Particle Size Comparison Chart

Particle size ranges can fluctuate based on plant, animal and human.

micron chart
portable defender

Lightweight & Portable

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

defender cutaway

360° Intake & Exhaust

Polluted air is pulled in from all sides through both filters. Secure Seal Technology ensures that only 99.99% of pure, clean air returns to the room.

defender dentist office

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.

Breathe easier with fresh, clean air


Mold Allergies
Clean Air for Baby
Healthy Indoor Air

3X better-than-HEPA filtration

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.

biocone filter cone

Medi-Filter Cartridge

The Medi-Filter® Cartridge provides three times better-than-HEPA filtration to remove pollutants such as dust, dust mites, pollen and mold spores.

enviropure charcoal wrap

Enviropure Charcoal Wrap

The Enviropure® Charcoal Wrap is made with HEGA (High Efficiency Gas Absorption) material, which is highly effective at reducing pollutants such as tobacco smoke, pet odors and lingering cooking odors.

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 Warranty

Test-drive the Defender Air Cleaner risk-free today.