This Doctor is Always on Call!

5 star rating
1,300+ reviews

Breathe Cleaner,
Healthier Air Today

with our Best-Selling AirDoctor 3500 Air Purifier

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Removes 99.99% of contaminants including:

smoke cloud in air

Smoke

bacteria microscope small

Bacteria

pet dander close up

Pet Dander

sneezing man with allergens

Allergens

dust particle cloud

Dust

mold spores close up

Mold Spores

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“Get Relief From Allergies, Asthma And Reduce Airborne Disease” - Dr. Rutland, M.D. Pulmonologist

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Say Goodbye to
99.99% of airborne contaminants 

AirDoctor captures particles down to .003 microns in size and VOCs, including:

  • Mold
  • Bacteria and Viruses
  • Smoke
  • Everyday allergens
  • Formaldehyde and Ozone (VOCs)

AirDoctor 3500 Features

An icon depicting air passing through multiple filter layers, symbolizing advanced UltraHEPA filtration.

UltraHEPA Filter

Captures 99.99% of ultra-fine airborne contaminants down to .003 microns 100 X smaller than the HEPA Standard.

A hexagonal grid pattern representing the carbon filter trapping gases and VOCs.

Dual Action Carbon/Gas Trap/Voc Filter

Captures 99.99% of ultra-fine airborne contaminants down to .003 microns 100 X smaller than the HEPA Standard.

 A fan with an "A" symbol, indicating automatic air quality monitoring and adjustment.

Auto-Mode & AirQuality Sensor

The air quality sensor detects your indoor air quality and automatically adjusts fan speed to efficiently clean the air.

A vertical line with particles on one side, symbolizing a fully sealed filtration system to prevent leakage

Sealed System

Our 3-stage filtration system is perfectly sealed which means no contaminated air escapes back into your home.

Two vertical bars with a circular dot in the center, representing a notification for filter replacement.

Change Filter Alert

Take the guesswork out of replacing your filters.

A fan with curved blades, indicating silent operation for minimal noise disturbance.

Quiet Performance

AirDoctor’s whisper jet fan’s are 30% quieter than other air purifiers on the market, so that you can breathe easy without all the noise.

AirDoctor 3500 unit air purifier

Save 40% & Take Advantage of the 30-Day Breathe Easy Guarantee!

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$629.99
$377.40
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Helping Thousands of Happy Customers Breathe Easier
"The BEST Air Purifier i've ever had, the easiest to maintain, most affordable for the quality, lightweight so easy to move around – Love it"
Suzanne (WA)

"I have the peace of mind knowing my indoor air is protected by this sturdy machine. I am completely satisfied and have told all my friends and family about this purchase."

Richard S.

"Love my air doctor. We’ve had it for a month and seeing the filter already collect so much dust is mind blowing! Worth the investment!"

Rylei D.

Enjoy Cleaner Air with AirDoctor's
Triple Filtration System

The Ultimate Performance to Clean the Air in Every Inch of Your Home

Enjoy Clearner air with AirDoctor's triple filteration system
1 The Pre-filter captures large particles such as hair and dust.
2 The Carbon VOC filter captures odors, VOC and dangerous gases such as formaldehyde and ozone.
3

The UltraHEPA® filtration captures virtually 99.99 % of the smallest and most dangerous contaminants down to .003 microns such as smoke, bacteria and viruses that can make you sick. That’s 99.99% times smaller filtration than ordinary HEPA purifiers.

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Air purifier filter system showing exploded view with pre-filter, activated carbon filter, HEPA filter, and front panel components for clean indoor air

Not Sure if the AirDoctor 3500 is Right for You?

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OTHER BRANDS

Filter Change Alerts

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Auto Mode

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100% Sealed System

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Air Quality Sensor Monitor

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UltraHEPA® Filter Technology

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Whisper Jet Fans

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Triple Filtration

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Frequently Asked Questions

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.