Protect children, patients and staff.

The "new normal" has been FilterQueen's way of life since 1928.
Helping create a healthier indoor environments for over 90 years.

Necessary Measures

Good ventilation is important, especially in areas where students are not wearing masks. Maximize filtration as much as the HVAC system will allow and use portable HEPA air cleaners.


Our Solution

Give your patients and staff peace of mind knowing they are breathing purified air. The Defender Air Purifier captures 99.99% of particles down to 0.1 micron.

Medical & Dental Offices

Rather than just relying on the building's HVAC system capacity, the CDC recommends using a portable HEPA air filtration unit for dental procedures and in airborne infection isolation rooms.

filterqueen defender filter queen air purifier hepa air cleaner portable room

FilterQueen Defender Air Purifier

The Defender Portable Room Air Purifier uses its proven technology to create a cleaner, healthier indoor environment that is protected from harmful pollutants.  

Why choose the FilterQueen Defender Air Purifier?

✓ FREE 1 year supply of filters included

✓ Lifetime perpetual warranty

✓ Built in the USA

✓ 3x better than HEPA filtration

✓ Used in hospitals

✓ Recognized as a Class II Medical Device

✓ Quiet, 24-hour operation

✓ Ozone-free

Removes 99.99% of pollutants such as:
• viruses • bacteria • pet dander • allergens • dust mites • mold spores • airborne chemicals • smoke particles & odors • noxious gases  


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.


FDA Class II Medical Device

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


Built In The USA

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


How does the Defender work?

(1) – 360° Air Intake

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

(2) – VOC & Odor Capture


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

(3) – Particle Capture


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

(4) - 360° of Purified Air


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

The Defender Filter is 3X better-than-HEPA

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.

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.

Provides three times better-than-HEPA filtration to remove pollutants such as dust, dust mites, and mold spores.

Made with HEGA (High Efficiency Gas Absorption) material, which is highly effective at removing pollutants such as tobacco smoke, pet odors and lingering cooking odors.

Does not produce ozone

(ozone is harmful to the environment)

No UV light

(UV light is ineffective, costly and dangerous)

Effective filtration capability

(3x better-than-HEPA)

See how happy our customers are with the Defender.

"I can't imagine why anyone wouldn't want to have a Defender in their business, and my employees are like family to me, so we're going to do everything here that we can, including using air purification like the Defender to protect my employees. That added level of security gives me the confidence to stay open and to almost brag to our customers what we're doing."

– Walter Miraglia, Bella Cucina Ristorante

"As a pulmonologist the science behind the Defender and its filtration capabilities are compelling. The fact that it has passed FDA clearance and is classified as a Class ll Medical Device confirms it's qualifications."

- RB. MD Pulmonologist

"The safety and security of our employees continue to be our number one priority. Over the past several months we have been working in partnership with our architect and other expert advisers on how we can have a safe environment for our employees upon their return. While we have a ton of ideas for changes and enhancements to our offices, this is very much a work in progress and the Defenders are one product we believe will help clean the air and slow down the spread of COVID."

– Certain Affinity

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


Yarani Del Valle, Vice President
Trideco Caribe, Inc.

787-753-8480 or 939-484-2404