Trusted by over 450,000 customers

Breathe cleaner, healthier air - guaranteed

Doctor-Recommended UltraHEPA® Technology Captures Bacteria, Viruses & Allergens.

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FEATURED IN

Awarded #1 Air Purifier to Protect Your Home

Award-Winning Filtration

Voted ‘Best Air Purifier’ in Newsweek & Green Matters

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The Hidden Danger Lurking in Your Home’s Air

Indoor air can be up to 100x more polluted than outdoor air. Every breat1h could be exposing you to harmful contaminants.

Did you know?

  • The average person takes 20,000 breaths a day – inhaling toxins, allergens, and viruses.

  • 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).

AirDoctor Removes More Pollutants Than Ordinary Purifiers

Bacteria & Viruses

0.06-0.2 MICRONS

Allergens & Pollen

5-20 MICRONS

Smoke

0.01-1 MICRON

Dust

0.5-3 Microns

Mold Spores

2-10 MICRONS

Microplastics

5-20 MICRONS

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Pet Dander

2.5-10 MICRONS

Volatile Compounds

VOCs

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How AirDoctor Works: Advanced 3-Stage Filtration

AirDoctor is independently tested & proven to capture particles 100x smaller than the HEPA standard, so you breathe easy.

Pre-Filter 

Captures dust, pet hair, & large particles.

Premium Carbon/VOC Filter

Traps toxic gasses, odors, chemicals, & volatile organic compounds (VOCs).

UltraHEPA® Filter

Captures 99.99% of ultra-fine contaminants down to 0.003 microns.

✅ Auto-Mode: Monitors your air quality and auto-adjusts filtration levels for optimal air 24/7.

✅ 100% Sealed System: Ensures zero contaminated air escapes back into your home.

✅ Change Filter Alerts: Know exactly when to replace filters for continuous clean air.

Save 40% on Our Best-Selling Air Purifier!
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AirDoctor 3500

AirDoctor 3500
$659.00
$659.00

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

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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

  • Filtration stages: 3-stage (Pre-Filter, Premium Carbon/VOC, UltraHEPA®)
  • 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

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.
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*Based on an email survey of 775 AirDoctor customer respondents.

Join 300,000 Happy AirDoctor Customers

“I love the AirDoctor. Over the past few years, I have purchased one for my bedroom, my living room, my office, and one for each of my kids’ bedrooms. We ALL love knowing that the air we breath is much healthier now. Thank you!”

Dianne (PA)

Verified User

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)

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💬 Join 300,000+ Customers Who Breathe Cleaner Air Every Day

AirDoctor vs. Standard Purifiers

Features
AirDoctor 3500
Standard
Filter Change Alerts
Yes
Yes
Removes 99.99% of Ultra-Fine Particles
Yes
No
WhisperJet Technology
Yes
No
Traps Viruses & Bacteria at 99.97%
Yes
No
100% Sealed System (No Leaks!)
Yes
No
Indoor Air Quality Sensor
Yes
No
Auto-Mode Adjusts Filtration
Yes
No
Triple Filtration with UltraHEPA®
Yes
No
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✅ Don’t Settle for Less. Get Award-Winning Filtration Today!

AirDoctor Breathe-Easy Guarantee

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.
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