Capture hidden contaminants lurking in your home’s air
Indoor air can be up to 100x more polluted than outdoor air. Every breath could be exposing you to harmful contaminants.
Did you know?
Americans spend 90% of their time indoors – if you’re not filtering your air properly, you’re breathing it in.
HEPA filters miss the most dangerous ultra-fine particles – but AirDoctor’s UltraHEPA® traps 99.99% of particles down to 0.003 microns (100x smaller than the HEPA standard).
The average person takes 20,000 breaths a day – inhaling toxins, allergens, and viruses.
AirDoctor Removes More Pollutants Than Ordinary Purifiers
Breathe cleaner air in the rooms that matter most. The AirDoctor 3500 is an award-winning, high-performance air purifier built for medium to large spaces.
Circulates 630 sq. ft. 4x/hr for continuous, clean air
UltraHEPA® captures 99.99% of particles as small as 0.003 microns
Dual-action Premium Carbon/VOC filter removes toxic gases, VOCs and odors
🗓️ 30-Day Money-Back Guarantee 📦 Easy Returns
📺 TV-only offer not available on our regular website or Amazon
Product Information
The AirDoctor 3500 is a premium air purifier engineered to deliver hospital-grade air quality in everyday living spaces. At its core is our exclusive UltraHEPA® filter which is independently tested and proven to capture 99.99% of airborne particles as small as 0.003 microns, including allergens, mold spores, smoke, bacteria, and viruses.
Its advanced 3-stage filtration system works from the outside in to address virtually every category of indoor air pollutant- quietly, continuously, and effectively.
Pre-Filter captures larger airborne particles first, including pet hair, dust, and lint, extending the life of the filters below
Premium Carbon/Gas Trap/VOC Filter neutralizes harmful gases, toxic VOCs, and volatile organic compounds (VOCs) that standard purifiers miss
UltraHEPA® Filter captures 99.99% of remaining particles as small as 0.003 microns including allergens, mold spores, smoke, bacteria, and viruses
Designed for medium-to large-rooms, it circulates air in spaces up to 630 sq. ft. four times per hour- the frequency recommended by a Harvard University study cited by the CDC for effective allergen removal.
What's in the Box
We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.
Technical Specification
Room coverage: Up to 630 sq. ft., 4x/hr
Circulates the air in medium to large rooms including living/family rooms, kitchens, and primary bedrooms
UltraHEPA® - captures 99.99% of particles to 0.003 microns
Dual-Action Carbon - Activated Carbon with Potassium Permanganate for real protection against gases and VOCs
CADR (smoke): 340 CFM
Dimensions: 15.75″ W × 8.75″ D × 23″ H
Weight: 18 lbs
Optional Smart features: Wifi connect + mobile app with AQI forecast
Proven by Science
In third-party laboratory testing conducted by MRIGlobal, AirDoctor 3500 removed 99.97% of live SARS-CoV-2 virus from the air in a test chamber
AirDoctor 3500 removed 99.99% of tested bacteria & viruses, including H1N1, in third-party laboratory testing
AirDoctor 3500 is independently tested & proven to capture airborne particles as small as 0.003 microns in size
The AirDoctor Advantage
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
AIRDOCTOR'S UltraHEPA® FILTER
AirDoctor’s UltraHEPA® filter removes particles 100x smaller than the HEPA standard. It has been independently tested to remove airborne particles as small as 0.003 microns in size - such as smoke, dust, mold, pollen, bacteria, viruses, and more!
Real Results: What Customers are Saying
98%
Cleaner, Safer, Healthier Air
98% said their home’s air feels cleaner, safer, & healthier.
97%
Powerful Smoke Filtration
97% said they feel more confident knowing AirDoctor filters smoke from their indoor air.
94%
Breathe Better
94% said they breathe better when using AirDoctor.
*Based on an email survey of 775 AirDoctor customer respondents.
Join 450,000 Happy AirDoctor Customers
Thankful
We were so excited to receive our AirDoctor! We just plugged it in and it immediately began to work. It's portable, quiet and sleek — the peace of mind this gives us is priceless.
Natalie C.
Wish I Ordered Sooner!
This thing is awesome. It works great and actually works so fast when I cook with cast iron that I don’t set off my sensitive smoke alarms anymore. Couldn’t be happier!
Abby J.
Does a Great Job
This really does clean the air. I’ve noticed a difference in the smell of the air and it automatically kicks up a notch when it senses something in the air that needs to be cleared.
Maggie
Why You’ll Love AirDoctor
Removes 99.99% of Ultra-Fine Contaminants (0.003 Microns)
Purifies Large Rooms 4x Per Hour (Ideal for spaces 630 sq. ft.)
Lab-Tested & Doctor-Recommended (Proven to remove viruses & bacteria)
Quiet Performance (Powerful filtration without loud noise)
If you don’t notice cleaner air in 30 days, return it for a refund of your purchase price (minus shipping & processing).
30-Day Breathe-Easy Guarantee
Independently Tested & Certified
1-Year Warranty
FAQs – Your Questions, Answered
Why are air changes per hour (ACH) important when shopping for an air purifier?
Air changes per hour (ACH) refers to how many times the air is changed with new, clean air in a given space within the span of an hour. A Harvard University Study cited by the CDC recommends at least 4 air changes per hour to effectively remove allergens like smoke, bacteria, viruses, dust, and pollen.
What is CADR, and why’s it important?
CADR, or Clean Air Delivery Rate, refers to your air purifier’s efficiency in removing these three contaminants over time: pollen, dust, and smoke. Higher CADR numbers indicate better air cleaning performance. The smoke CADR number is most stringent, reflecting the unit’s ability to eliminate the smallest and most dangerous particles from your indoor air.
Which air purifier is right for me?
Great question! Choosing the right air purifier will depend on the size of your room and the air circulations per hour. According to the Harvard University study, 4 air changes per hour are recommended for optimal purification. AirDoctor units are designed to meet this standard.
How often do I need to change the filters?
AirDoctor 1000: Replace UltraHEPA® and Carbon/VOC filters every 6 months.
All other AirDoctor units:
Replace Carbon/VOC filters every 6 months.
Replace UltraHEPA® filters every 12 months.
The indicator light on your AirDoctor will also light on when it’s time to replace your filter
– no more guesswork!
What is your return policy?
We stand behind the quality of our products. That’s why we offer a 30-day money-back guarantee on all purchases. If for any reason you’re not completely satisfied with your AirDoctor, simply reach out to our friendly customer service team at 1-800-221-2515, and we’ll gladly issue you a full refund, minus shipping and processing fees.
Do you offer payment plans?
Yes! If you’re interested in a payment plan option, just select the Affirm payment option at checkout and follow the instructions. Terms and conditions apply.**
**Various purchase plans are available based on approval. Regretfully, Affirm is NOT available in Iowa or West Virginia due to state-specific financial regulations.